Tell us about yourself!
Take the windscreen wiper tip one step further: go out now and buy fanbelts, radiator hoses etc and install them and stow the old but still usable ones in the car as spares.
This is very similar to Starbrite brand waterproofing compound. It's made from silicone thinned with naptha solvent and stoddard solvent. I use it on the canvas top of my SAAB and it waterproofs extremely well. It will put up with a sub tropical summer storm without leaking. I apply it with a cheap spray bottle but if you leave it in the bottle the solvent destroys the washers and it won't spray anymore.Btw, in Australia methylated spirit used to be 90% ethyl alcohol denatured with methyl alcohol for tax and duty reasons but certain people continued to drink it no matter how bad it tasted so now it's all ethyl with some demineralised water and a bittering agent to make it taste disgusting. I shall now say the words carbon filter without giving a reason why.
Taking aspirin with a hangover is guaranteed to cause vomitting, which will probably ease your hangover anyway.
You can use a strong magnet to operate a hidden bolt as a hidden lock or childproof latch.
This one, at band clamp....