Here are some of the tricks you may or may not have previously known:
The double wrench
This is simple yet effective trick to get some more leverage in a tight space. Using just a simple pair of spanners, you can in fact latch the closed end of the second wrench to the curved side of the first, resulting in a greater twisting force on stubborn nuts and bolts. Even though this can get you out of tricky situations, be careful and try keeping the leverage straight on the direction you want it to turn. Anything out of balance will most certainly give some bloody knuckles and cursing, that too at yourself.
The mechanic’s field dressing
Predictably, at some point, you’re going to mess up and make your finger bleed. Perceptibly, having access to first aid supplies is optimal, but in the likely scenario where you don’t have these things, then desperate times call for desperate measures. At this point, all you need is a small piece of clean cloth and some tape (preferably electric tape). Just cover your battle wound with clean cloth, and tape the living daylights out of it, so that you’re good to fight on again.
The magnet vacuum
No matter how tedious you are, home car projects will always be a mess at the end. If you have spilled a bucket full of nuts and bolts on the floor and they end up literally everywhere, then what do you do? Simply put a strong magnet in a plastic bowl or container, and then skim it along the floor to pick up the nuts and bolts. Once you’ve picked up all you can, move it over the bucket and pull the magnet out of the plastic bowl, letting the nuts and bolts drop into the bucket.