Nothing like having a bag of alligator clipleads handy while working on a new design.   I use a ton of them in all different sizes and colors. Ours are available with 20 or 24ga wire and each package contains 2 Black, 2 Red, 2 White, 2 Yellow, and 2 Green.   These things are indispensable for amp techs, hobbyists, and builders. You might as well buy a bunch of these because if you are like me, no matter how many I buy they seem to disappear eventually.
pkg(s) of 10	$1.50 pkg of 10	Alligator clipleads, small	Alligator Clipleads, 24ga wire, 10 pieces per pkg. multicolor
pkg(s) of 10	$2.00 pkg of 10	Alligator clipleads, large	Alligator Clipleads, 20ga wire, 10 pieces per pkg. multicolor