This. I keep my friends list neat by taking a look at today's birthdays. When Facebook asks me to write something on a person's wall for their birthday, I can m

This. I keep my friends list neat by taking a look at today's birthdays. When Facebook asks me to write something on a person's wall for their birthday, I can make a quick decision on how important that friendship is to me. For those I don't feel a need to keep around, I unfriend (or perhaps just unsubscribe/hide) them. It's nice because I don't have to embark on some great friend list culling as a major event, but I do get to trim the list with some frequency.