The ultimate "salvaged from something lying around the house" wire is an old printer Parallel port or large Serial port (like the 25 pin type) cable. Inside you'll usually find literally dozens of different colors of thin-gauge stranded-core wire. Stranded is better than solid-core for this type of stuff IMO. If the wires don't all have unique colors, they'll at least have unique markings, like the stripes on Cat5/6 wiring.

I have so many broken ones of these lying around. Thank you.

I use ipod charger cable wire. It's super thin, easy to work with, cheap ($2 or less, ebay, china) and you get 4 different colors in a 3.4 ft cable.
Good for all small solder point projects.

http://www.ebay.com/itm/301314613192?_t … EBIDX%3AIT

30-gauge wrapping wire.

I like Ben&Jerry's Core so I can eat it... because... it's tasty...

I like solid core so I can bend it onto the most efficient rout point to point and it will retain it's shape.

Hahaha, it seems like I've heard that in the early days farmers built out rural telephone networks using their existing barbed wire fences. Pretty hardcore.

It's only hardcore if you use barbed wire for your mods

Hardcore as fuck

I use chicken wire.

Just get yourself a bunch of different kind of this wire: http://www.ebay.com/itm/Stranded-indoor … 5d521f03f0

Shipping will take a while though.

I bought a spool of wire wrapping wire that seems to work pretty well. It's thin and there is a lot of it, so it will probably last a while. If you have decent wire strippers it's pretty easy to strip as well.

My mods have gone fine with wire from a sacrificed phone line. Have also used salvage from otherwise broken usb and Ethernet cables.

I use ribbon cable ripped from old computers.

Handheld legend sells some 28 gage wire http://handheldlegend.com/collections/p … e-5-meters