In an effort to effectively deal with that whole “five wall warts where only four will fit” situation, I’ve ordered one of these:

I’ll report back once it arrives on how it works out, although I foresee no problems. Too bad it didn’t have six connectors instead of just five, that would have covered most scenarios I’d throw at it for my live set up. But five will do under most circumstances. Right now I’m using a really big power bar that has two extra wide spaces for wall warts, but usually it’s still a little tight to get everything in.