Sorry if these have been posted before (too lazy to read 46 pages of old posts).
Improved locked repeater T-Flip Flop which can also be used as a double-throw switch.
Redstone lamps show the outputs, and there is a 1-tick delay on the torch output (left output in picture above).
Tiny dual-edge detector.
Repeater in front of input has 2 tick delay. Output is the redstone line into the blue block, not the blue block itself (you can replace the blue block with the dispenser/dropper). Output is normally high and pulses low on input high/low change. Output pulse is very short so it only works with dispensers or droppers (pistons won't react).