Okay, so I've downloaded several texture packs, but I can't find the folder in which to put them so I can switch in-game. Just to clear things up, I already know how to get the packs to work, and I'm using a Mac. Any advice? I sincerely hope that this isn't something amazingly obvious that I'm missing.
Library > Application Support > Minecraft
?
If there really isn't, you can just create one and put them there.