I've setup two zones in the house for charging devices since there are basically AC only devices and Computer devices.

For the AC devices we have a counter thats right near the front door, basically a high bar area that divides the kitchen from the living room. There are outlets on the lower kitchen side so the adapters are plugged in there and you set your device on the higher bar side to charge. The cords fall into a little plastic tub that sits on the low side of the counter. Keeps them relatively tidy but easy to reach over and grab.

For the computer stuff I keep the various cords in another little plastic tub on a shelf near where I normally use my laptop on the couch. Since we dont have an "office" that the computers live in, this works well for updating my ipod and my wife's Palm.

Everything else is network based. Moving to a network printer/scanner really helped cut the number of cords floating around and Network Attached Storage gave central access to big media files such as movies, music and photos.