Breadboard good, breadboard bad
Two copies of the same circuit. The one on the right was done first, and is a pretty good rat's nest, if I do say so myself. The one on the left was built based on the other one, but with an eye toward clarity. Much easier to see what's going on! I guess that figuring out the layout based on a schematic is a skill that needs practice.
Any suggestions on how to keep things neat and easy to follow? (I've decided against the blue lines I drew on the one breadboard ... I thought they'd help me keep track of where the connections are. Turns out I don't need reminding, and the lines make it kind of ugly.)