4.9/5

(247+ reviews)

The Why You're Mine Book

Better Than Cards, Cheaper Than Dinner, Lasts Forever

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Love your book or get a full refund - no questions asked.

Valentine's Day shipping guaranteed through February 10th
Valentine's Day shipping guaranteed through February 10th
Valentine's Day shipping guaranteed through February 10th
Valentine's Day shipping guaranteed through February 10th

Excellent 4.9/5 | 247+ reviews

Not Just A Card—It's Actually Personal

While everyone else is buying generic cards, you're creating something they'll actually keep. Fill-in prompts. Romantic quotes. Done in 30 minutes.

Done In Under An Hour

Done In Under An Hour

30 minutes to fill out. 52 pages of prompts. Zero writer's block—just answer the questions.

They'll Actually Keep This One

They'll Actually Keep This One

Every card goes in a drawer. This one goes on the coffee table. Gets re-read on anniversaries.

Way More Thoughtful Than Flowers

Way More Thoughtful Than Flowers

Flowers die by Tuesday. This stays on their shelf. Because you filled it out by hand about them.

Not Another Boring Valentine's Gift

Not Another Boring Valentine's Gift

Not roses. Not chocolates. Something they've never gotten. That you made personal. That shows effort.

The Why You're Mine Book
Excellent 4.9 | 1,422

The Why You're Mine Book

Get It By
Get It By

How It Works (It's Stupid Simple)

Follow these simple steps to get started

Order By Feb 10th 🚚

Order By Feb 10th 🚚

Get it delivered before Valentine's Day. Don't panic-buy at CVS this year.

Fill Out The Prompts ✍️

Fill Out The Prompts ✍️

Answer questions like "My first impression of you was..." and "I knew I loved you when..." 52 pages of prompts. Takes 30 minutes. No writer's block.

Add Photos (Optional) 📸

Add Photos (Optional) 📸

Blank spaces for ticket stubs, photos, little notes. Make it even more personal if you want.

Give It On Valentine's Day 💝

Give It On Valentine's Day 💝

Watch them actually get emotional. Way better than seeing flowers die by Tuesday.

Order By Feb 10th 🚚

Order By Feb 10th 🚚

Get it delivered before Valentine's Day. Don't panic-buy at CVS this year.

Fill Out The Prompts ✍️

Fill Out The Prompts ✍️

Answer questions like "My first impression of you was..." and "I knew I loved you when..." 52 pages of prompts. Takes 30 minutes. No writer's block.

Add Photos (Optional) 📸

Add Photos (Optional) 📸

Blank spaces for ticket stubs, photos, little notes. Make it even more personal if you want.

Give It On Valentine's Day 💝

Give It On Valentine's Day 💝

Watch them actually get emotional. Way better than seeing flowers die by Tuesday.

Your Questions Answered

How long does it take to fill out? +

About 30 minutes if you're focused. The prompts guide you through it so there's no staring at blank pages wondering what to write.

What if I'm not good at writing? +

That's literally why we made prompts. Just answer the questions. Your handwriting and effort matter more than being Shakespeare.

Can I add my own stuff? +

Yeah. Blank spaces for photos, ticket stubs, whatever. Or just stick to the prompts. Your call.

Will this work for new relationships? +

If you've been together 3+ months, yeah. Some prompts might feel intense if it's been like 2 weeks though.

What's actually in the book? +

52 pages. Fill-in prompts about first impressions, favorite memories, reasons you love them. Romantic quotes. Spaces for photos. That's it.

Is this only for Valentine's Day? +

Works for anniversaries, birthdays, or just because. But yeah, it's perfect for Valentine's if you want something better than flowers.

What if they don't like sentimental gifts? +

Then they probably told you that already. But most people like getting something personal that took actual effort.

Can I preview the pages before buying? +

Scroll down—there are photos of actual pages. Prompts like "I knew I loved you when..." and "A place I've always wanted to go with you is..."

What if I'm not good at writing? +

That's literally why we made prompts. Just answer the questions. Your handwriting and effort matter more than being Shakespeare.

Will this work for new relationships? +

If you've been together 3+ months, yeah. Some prompts might feel intense if it's been like 2 weeks though.

Is this only for Valentine's Day? +

Works for anniversaries, birthdays, or just because. But yeah, it's perfect for Valentine's if you want something better than flowers.

Can I preview the pages before buying? +

Scroll down—there are photos of actual pages. Prompts like "I knew I loved you when..." and "A place I've always wanted to go with you is..."

Your Daily Ritual, Backed by

Why This Is Blowing Up On Valentine's Day

Actually Personal
Actually Personal +

Cards say "Happy Valentine's Day." This says "I knew I loved you when you brought me coffee without asking." Because you filled it out by hand. With your actual thoughts. About them. That's why it matters.

Done In 30 Minutes (Prompts Guide You)
Done In 30 Minutes (Prompts Guide You) +

No blank pages. The prompts do the work. "My first impression of you was..." "A place I've wanted to go with you is..." Just answer the questions. 30 minutes. Zero writer's block.

They'll Keep This Forever
They'll Keep This Forever +

Every card you've given is in a drawer. This goes on the coffee table. Gets re-read on anniversaries. Because it's your handwriting, your effort, your thoughts about them. That's why it lasts.

Way Better Than Flowers Or Dinner
Way Better Than Flowers Or Dinner +

Flowers cost $80 and die by Tuesday. Dinner costs $200 and you forget it by March. This costs $24 and stays forever. You can't throw away something someone filled out by hand about why they love you.

Why This Beats Every Other Valentine's Gift

Why This Beats Every Other Valentine's Gift

Castly
Why You're Mine
Traditional Gifts
Lasts Forever
Actually Personal
Under $40
Done In 30 Minutes
Zero Skills Needed
They'll Keep It

See Why Everyone's Obsessed

See how easy it actually is (and why everyone's choosing this over cards and flowers)

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Love It Or Get Your Money Back

30-day guarantee. If they don't love it, you get your money back. But honestly, when's the last time someone didn't appreciate something you actually put effort into?

Get Why You're Mine
30-Day Money Back
Guaranteed Valentine's Delivery
Easy & Fast Returns
Custom shield icon

Love It Or Get Your Money Back

30-day guarantee. If they don't love it, you get your money back. But honestly, when's the last time someone didn't appreciate something you actually put effort into?

Get Why You're Mine
30-Day Money Back
Guaranteed Valentine's Delivery
Easy & Fast Returns