No, not those "Rules." The rules for buying gifts for guys... since we all know men are impossible to shop for.

When you're first dating, you don't want to scare him off, but you don't want to seem too aloof either. How much do you spend? At what point do you start exchanging gifts in the first place? And once you've been married for a while, the expression "the man who has everything" takes on a whole new meaning. (He has everything because you've already bought him everything!)

Fortunately, online dating site OkCupid.com has put together a few lists that lay it all out for you... just in time for Valentine's Day! Check 'em out:

IF YOU'RE MARRIAGE-MINDED
1 month — Cologne. He'll smell good, so you'll enjoy it, too.
3 months — Lingerie for yourself. [Everyone knows it's really a gift for him.]
6 months — Keys to your apartment.
1 year — Tickets to see his favorite sports team or musician. [You'll be his date, of course.]
2 years — How about something shiny like cuff links? Leave the jewelry catalog lying around as a hint.
3 years — Nothing... Sit back and wait for that ring! [Or, wait a second, it’s 2008. Just propose.]

IF YOU'RE CHEAP (OR JUST BROKE)
1 month — Borrow your sister’s scrapbooking supplies and make him a card. Be sure it has lots of thoughtful sentiments scribbled on it so it doesn’t come off as… well… cheap.
3 months — Offer to "splurge" on a movie. Drop obvious hints about how romantic it is when men cook.
6 months — Mix him a CD of meaningful songs. Stick a picture of the two of you in a dollar-store frame. Done.
1.5 years — Make him another card to give him alongside the Valentine's-themed men’s shaving set you bought at 75% markdown last February 15th.
2 years — At this point, he’s within his rights to expect something substantial. You have to either suck it up and spend some cash, or ask your brother/male friend if he got any Christmas gift he hated…and regift. (We won’t tell.)
3 years — Offer to spring for dinner. At the end of the night, tell him to go warm up the car and start sobbing immediately after he leaves the restaurant. Confess to the headwaiter that you thought he was going to propose, but that he just told you he’s leaving you for your best friend. And –sob- he was supposed to pay…

IF YOU'RE ADVENTUROUS
1 month — Buy tickets to see a movie you’ve never heard of. If it’s foreign and you get bored of reading subtitles, you can always just make out.
3 months — Buy him flowers and chocolate. If he’s not easily embarrassed, send them to his office.
6 months — Road trip! Surprise him by taking him to see The World’s Largest Ball of Yarn (or Frying Pan, or whatever’s within a few hours drive).
1 year — Name a star after him. Suggest a trip to Space Camp together next summer.
1.5 years — Two words: tandem skydiving.
2 years – Tickets to Spain to participate in the Running of the Bulls.

PLUS: Check out iVillage's gift guide right here.