For many months, my garage compressor has been suffering a tiny loss of pressure. I have it on a mechanical timer, wind it up to allow a set number of minutes then it switches off - it avoids me walking away, leaving it on, and firing it up every so often. The tiny pressure loss, meant I would run it to charge it up, then next day it would have lost nearly all of it's pressure due to leakage at the end sockets. Last time I looked at fixing it, I traced it to one outlet, gave it a good squirt of WD40, and it fixed it for many years....
Last Friday, I went around all of the outlets, and gave them all a dose of WD40, plugged something into each, to get the WD40 well inside, then charged it up. I've just checked the pressure today, four days later, and no pressure lost at all.
Never had a problem ever whilst living here, but...
Many years ago, there were rumours of huts being broken into, and items stolen, so I took measures to reinforce that, alarm it, likewise the garage too. I wove 3mm steel wires, back and forth across the windows, beefed up the door, adding secret, hidden locks.
I have ladders stored outdoors, so I bracketed, and locked those to the garage wall. Since when the number of ladders have increased, I took the bracket off the wall, because they wouldn't fit in the bracket, and I became lax. Today, I thought I ought to try to secure things a bit better, and thought perhaps a chain and padlock. Padlocks I had in a drawer, but no chain, then I remembered that bracket. All it needed to secure them, was for them all to be fixed together. No one could steal a bundle of four ladders, padlocked together. I knew I'd stored that bracket somewhere, so turned out my pile of scrap steel looking for it.
Then, I went to look at the ladders, just to weigh them up for a chain, and found the missing bracket, hooked onto the mast brackets of my weather station. It fits round the stiles of four stacked ladders perfectly

It's just a U shape, made from three pieces of heavy angle iron, welded together, and a fourth bit, hinged with a large bolt, then a hole for a padlock. The only way to remove it, without the key, is with an angle-grinder and lots of noise.