Its one of the sucky parts of having an ht cabinet, After my ht was setup for about 4 months, I figured it was the way it was going to stay so I measured all the cables I needed and bought them accordingly, pulled it all apart and reweired it start to finish with the new stuff, then over time I changed it a few times and its a mess again... My 2.2 parlor system is easy, its a toslink cable 2 speaker wires, 2 xlrs and 2 rcas with a few power cords, but I agree when you have a ps3, preamp, 2 amps, cable box, ipod dock, power distributer, whole house audio box, pc connections, ect ect ect it can get crazy out of control.
My brothers ht rack was insane, 3 mono blocks for his front end a 5 ch for surrounds, a preamp, a processor {denon avr}, a turntable, cd player, ps4, xbox, pc, blu ray player, cable box, dac, and surge protector splitter box... He has since cleaned it up, no more htpc and no more separate blue ray {I don't think}