I could tell you that I wear 2.50 reading glasses and am blind in one eye and can't see out of the other. And that once I hit five-oh last year, my eyes and stock portfolio seemed to be tied to each other. And then there was the 1-hour quest for a lost front suspension spring, that ended up still being on the kingpin; I just couldn't see it there.
A magnet and a magnifier set are a must. A young, tweenaged, inquisitive daughter that likes to find stuff on floor helps immensely also.
On a more serious note, I just finished building a well-lit workshop -- what a blessing that has turned out to be for my marriage, as the kitchen table can now be used for eating. Remember to disassemble/assemble over a shoe-box top, so little parts are always contained. A white box-top helps you see the parts easier.
I have a new tweak that enables you to disassemble the front wheel and locking pin/axle to clean out the front end -- without disassembling any of the front suspension whatsoever. I'll try and post pictures below and describe -- but I'm not sure if I can shoot decent pictures without a macro lens though.
And yes, there will be a senior's discount should I decide to sell the rubber/EVA roll-up surfaces
, which is looking more like a possibility, considering the factory minimum order is about $3500 of the stuff and there's also the threat of divorce should I fill-up the garage for more than a day or two with anything but a full scale car.