Here's my latest experiment in "tidy" - All cables, power adapters, mixer and extension cords are all in ONE BOX that rests underneath my KB between the "X" of the stand.
If it works flawlessly for the rest of the summer, I'll rebuild it into a wooden box that fits even more perfectly and has better mod options, like a mini patch bay built in.
Basically ... The 12" x 12" box is loaded with all my outboard gear, and ONE cable goes to the wall and ONE cable goes to the Bose.
Keeps all controls at my fingertips and I never have to take my eyes off the crowd.
No sure how the pics thing will work, so this may take 2-3 posts to get all the picture posted.

There are TWO pix per post. Not sure why only one shows in some, and none in others.

The box contains:
1) Bose T-1 Tone Match mixer with adapter
1) Yamaha psr-s950 power adapter
1) AKG dual wireless mix receiver with adapter (ch1)
*) all extension cords to plug everything in, with extra plugs
1) ipad audio wire (ch3)
2) 1/4" wires for Yamaha to Bose (ch4)
1) guitar cord (ch2)

Most of the wires and stuff are hidden underneath the left side of the box - under a lid that I taped shut. The right side allows access to the Bose controls.

The whole box fits neatly into a soft bag (from Shure) that was made to carry 12" vinyl records.

*** if you're in a hurry - IMG2848 has a good shot of the whole thing in place. All the other pictures are in various stages of set-up.