Shaving the firewall. What to do with all the stuff?

[abadsvt]

Yesterday i opened the hood to my truck. Trying to get a strategy first. Well i was over whelmed by all the wires running everywhere, a bunch of stuff running through the firewall. I could go on and on. What did you all do to hide the wires and re-route things through the firewall. I plan on adding a/c to the truck so is that going to be adding more stuff. Any comments would be appreciated. Pics would be better with an explanation. Sorry for the newbie questions but i thought i would ask the experts. Thanks Josh