One inch Troyka-shaped protoboard with holes interconnected in a fancy pattern to free you up from dealing with wires
One inch prototyping board with most holes unconnected; make own Troyka Modules or middleware
Traditional through-hole board with no points interconnection
Make own shield with a soldering iron; the holes come pre-wired in the breadboard fashion
A one-to-one copy of the half-size breadboard to make your once-functioning circuit rock solid
A one-to-one copy of the full-size breadboard to make your once-functioning circuit rock solid
Build a little circuit without soldering, embed it to a device with the adhesive back side; 170 tie points
Build-test-fix a circuit quickly and without soldering; 400 tie points — the best size for simple digital schemes