First up, our buddies at The Frisky (specifically Judy McGuire, whose photo I giggle at every time) has a step-by-step guide on how to have a miserable Valentine's Day as a singleton. My advice, pull a Costanza and aim for the opposite (that may have be the point, subtlety isn't a strong suit of mine).
The blokes at VerySmartBrothas are on the same track as LimeLife, free Valentine's Days are the best kind. They break down 1-2-3-4-5 options for a cheap V-Day. I suppose all of these programs are assumed to end in basically free sex. Read: Valentine's Day Gifts Decoder
Divine Caroline, on the theme of bad V-Day ideas, gives you a rundown of 7, I repeat 7, big Valentine's Day don'ts. I have a bone to pick with the very first item.
Because times are tough, a heart-shaped necklace may not be in the cards, Em & Lo (EmAndLo.com) suggest making a list of why you like your special someone. The questions "Why do you like me?" and "What do you love about me?" are prett-y loaded; Em & Lo give the tips on how to do it seamlessly. (PS: Buy their DVD, Sex: How To Do Everything.)