Even though you show your love all year long, Valentine's Day is the ideal excuse to shower your favorite geeks with an extra dose of Xs and Os. Pick up one of these 27 cards for the physics know-it-alls, Star Wars sweeties, and robot-obsessed cuties in your life.
Because just like the dinosaurs of this card  ($3), the two of you have your whole lives ahead of you.
Show the softer side of your zombie self with this romantic (?) love you for your brains card  ($3).
This cute card  ($4) confirms it — you just make scientific sense together.
Electronic messages are a main form of communication these days, but take the time to unplug and send a sweet handwritten note  ($4) this Valentine's Day.
With an inscription in the card of "who loves you, baby," how can you turn down a TARDIS card  ($5)?
Honor the glory days of the mix tape with this sweet lo-fi card  ($5).
Xbox-lovers won't be the only ones to appreciate this punny turn-on card  ($4).
Pandas in glasses  ($4) have nothing but love for you.
This multitasking robot  ($6) offers the finest in Valentine's Day treats.
Admiral Ackbar's broken heart makes him skeptical of love  ($3), but you don't have to be.
For your valentine, crushing candy  ($4) means a lot.
Show your typography nerd you care with this adorable Exactly My Type  ($4) card.
While we'd advise caution when it comes to following the red heart balloon  ($5), love knows no bounds.
Robot meets robot. Robot falls in love  ($5). A timeless tale.
Your love defies physics  ($5), so express it with this equally scientific card.
The genius of Yoda and a perfect pun are on display in this card  ($5).
A Valentine proposal  ($5-$6) from Sherlock and Doctor Who? Now we're talkin'.
Show your sweetie it's love by finally relegating Captain Picard  ($5) to your number two.
Ah, nothing is sweeter than young alien love  ($4).
Print this adorably geeky Pac-Man valentine  ($3) that says "I'm so glad" on the front.
For those who can't choose in the war of the stars, this Star Trek/Star Wars mashup  ($5) card is for you.
Without even trying, you auto-complete me  ($6). Is there a sweeter sentiment in the digital world?
Beep boop beep. Yes, it's my coding — I was programmed to like you  ($6).
Super Mario fans, this will you boo my valentine card  ($4) is just what you were looking for.
Proving that no digital clutter can hold a candle to you, valentine, you're more awesome than inbox zero  ($6).
Apple fans see their latest iPhone as precious cargo, so to receive an I love you more than this  ($6) card is worth its weight in gold.
Well, if Ron Weasley says you're a keeper  ($4), it must be true.