I have all kinds of stuff on the agenda for the day. Some of it involves housecleaning, but these things happen; life is like that. Most of it is much better than housecleaning.
I definitely appreciate birthday e-mails and lj posts (and phone calls, cards, etc.). I tend to wish people "happy my birthday!" when they wish me a happy birthday, because I couldn't possibly have all the cake, ice cream, chocolate, flowers, presents, etc., nor would I even want to. So go nuts! Good chocolate is a perfectly reasonable way to celebrate my birthday. I have bottles of green wine in the fridge -- green wine is a very good way to celebrate my birthday. Read something good (and even better, tell me about it!) -- very appropriate Mrissish birthday thing. I usually have a great time on my birthday -- why shouldn't you?
Edited to add: I have been asked on e-mail by enough people now: green wine is wine that is green. You know how most white wines are a pale yellow? These are kind of a pale green. Yellowish green. The best green wines are Hungarian, but other countries do a credible job with them as well -- Portuguese vinho verde, for example, can be a very fine thing indeed. They tend to be sweet but not overwhelmingly so, and not very dry at all. I have occasionally made statements like, "If it's green, I'll drink it," but this is not strictly true. If it's green, and is a wine, and is supposed to be green, I'll drink it. Wheatgrass juice need not apply.