Don't worry dude you're not alone

When I open up the back of an old tv or stereo or any type of electronic type of componant I see it as a miniature Radioshack !

. Heres a list of stuff that I used in my cabinet taken from old electronic devices
Momentary switches
L.E.D's (all different kinds of colors I might add)
potentiometers
rheostats (haven't used these in my cab but I got em if I need em)
terminal blocks
small fans
various types of molex connectors both male and female
miniature bulbs and sockets
tons of good quality single strand (solid) in every color imaginable. more colors then Radioshack could ever offer. Lots of colors means every componant has its own color (except ground wires which are all black . to simplify any future wiring problems. also drew up a color code cheat sheet schematic to make it even easier.
rubber grommets
A few other misc. duedads that I can't recall at the moment.