I need breadboard wire for fast prototyping. It can apparently be 22AWG or 24AWG, acccording to this reply about stranded VS solid wire. Because it is for prototyping, I am not looking for expensive wires with excellent electrical shielding and such things -- just simple wires to plug into breadboard and reuse it fast: connect, reconnect, etc without getting them broken. Where do you get your solid experimenting wires?
"Male to Male Solderless Flexible Breadboard Jumper Cables" that you connect to your breadboard and let say female sockets in your Arduino/Lauchpad/etc.
Also try "Female to Female Jumper Cables". They are pretty useful in fast prototyping.
Buy network cable such as Cat 5/6 and take out the wires, more here. It is a reusable and cheap solution. Yet there are different types of RJ45-headed cables: one of mine is stranded copper (cannot cut it with my tools) and one is solid wire (soft). The last fits to breadboard but try to see the cables first, large differences in quality.