holiday_wishes is something I have done for a few years and would like to participate in again this year -
Step One: Make a post containing your list of 10 holiday wishes. The wishes can be anything at all, from simple ("I'd love a Potter fanfic icon that's just for me") to really big ("All I want for Christmas is a new car/computer/house/TV.") The important thing is make sure these wishes are things you really, truly want. If you wish for real life things (not fics or icons), make sure you include some sort of contact info in your post, whether it's your address or just your email address where Santa (or one of his elves) could get in touch with you.
Step Two: Surf around your friends list (or friends’ friends, or just random journals) to see who has posted their list. And now here's the important part: If you see a wish you can grant, and it's in your heart to do so, make someone's wish come true. Sometimes someone's trash is another's treasure, and if you have a leather jacket you don't want or a gift certificate you won't use--or even know where you could get someone's dream purebred Basset Hound for free--do it.
You needn't spend money on these wishes unless you want to. The point isn't to put people out; it's to provide everyone a chance to be someone else's holiday elf--to spread the joy. Gifts can be made anonymously or not--it's your call. There are no rules with this project, no guarantees, and no strings attached. Just...wish and it might come true. Give and you might receive. And you'll have the joy of knowing you made someone's holiday special.
My list is
here