In all seriousness, I would probably hit the outdoor/sunglass sections at the sporting goods/dept. stores and find a cheap pair that you like the look of first. Wear those around first to see if you take care of them or how long it takes to lose them. Then invest in a more expensive pair with the look you like. I buy gym locks 3 at a time so when I lose one I don't have to learn a new combination.
On the other hand, I have to wear prescription bifocals. The last time I got a new set of glasses, I also got a set of sport sunglasses as well. I wear them for everything. I haven't lost/broken them yet 5 years in.
Most power/pneumatic tools come with safety glasses. I have some customers that say they make great sunglasses. The customers scoop up any extras I might have. It's hard to beat free.
