Spent $400 on a fancy digital moisture meter for wood and it's the best tool I never knew I needed.

Just realized most people are guessing the torque on aluminum lugs

I've been checking old service panels in older homes for the past month, and I keep finding aluminum main lugs that are either way too tight or way too loose. The spec sheet for the panel I was working on yesterday said 50 inch-pounds, but the guy before me had clearly just cranked it down with a regular driver. That extra heat over time is no joke. I've started carrying a small torque screwdriver in my kit, and it's made a real difference in my peace of mind. How many of you actually check the spec and use a torque tool on service connections?

I was loading film wrong for months and only noticed at a friend's wedding

I shot three whole rolls at a wedding in Portland last month, feeling pretty good about the shots. When I got the scans back, every single frame had this weird light leak along the top edge. My friend who runs the lab asked if I'd closed the back properly, and it hit me. I'd been pushing the film canister down with my thumb instead of letting it click into place on its own. That tiny gap was letting light in the whole time. I've been doing it that way since I got my Pentax K1000 in January. Has anyone else had a small loading habit mess up a big batch of photos?