If you go to Digi-Key.com and type "hookup wire" in their search engine and limit the search to 24 AWG stranded wire you will find a lot of suitable and easy to work with wire. there probably are a lot of less expensive sources if you search long enough.
Find yourself 4 100 foot roles of 24 guage stranded hookup wire in 4 different colors and you will have a ten year supply for any low current hobby projects.
KG2