In the past few days, I've stumbled across some neat tricks that are worth passing on. Both of these apply to ham radio, but the first one also applies to any 12v wiring (cars, boats, etc.) that uses blade fuses.
Using an extra blade fuse as a fuse puller, very short at 1:21. Once you've seen it you'll recognize the utility of this type of fuse's design, despite its non-obviousness. One of those tidbits of knowledge that should but doesn't get passed around, I guess.
Setting microphone gain and speech compression using an external power meter, starting at the 6 minute mark (but you probably should watch the whole thing). I sort of knew of this, and you can do this after a fashion with only a transceiver's power meter, but it was always so poorly documented. It's much clearer how to do this once you've seen it in this video.
All for today.