I too, am a ceramic magnet fan - I glue them on the bottoms of dust pans.
I use my Brother label maker to label all my wires at every possible location - where it leaves a box, where it enters a wall/ceiling, where it exits the wall/ceiling, where it enters a box, and what each wire does once it gets in the box.
I use my sharpie for leaving myself notes. My right work glove says 'THINK' and my left glove says 'DON'T BE STUPID'. My electrical pliers say 'TEST BEFORE YOU CUT'. My hammer says 'Don't pry on good wood'.
When using a rotary tool to cut out a opening in the ceiling you can make a quick and easy dust shield with a piece of disposable storage ware - I think mine's a 2 quart. And I've even seen them tricked out with portals for shop vacs.
I use the little half aprons waitstaff use at chain restaurants (heck mine evens says, Applebys). Here's the trick:wink::wink: I wear it backwards over my hind-parts - the stuff I keep in it is just as accessible and it doesn't ever get in my way when I'm working.
I use zip ties to put hangers on anything that will stand still. I make them big enough to hang over a door knob - inside most doors in my house you can find a utility knife, tape measure, flash light, dust pan, you name it - I hang it.
But without a doubt my favorite DIY 'trick' that I have learned is to use screws with a star drive - what I spend on fancy screws I make up with never ever stripping a screw and not having to junk phillips bits after every 10th screw. Sure I may be screwing (get it?:thumbup:it was worth reading all my ranting, wasn't it?) the next person who owns the house. But the efficiency outweighs my fear of Karma.