I can't even go outside in daylight without sunglasses. I start to squint really bad and end up with a headache. I'm another one who has trouble keeping track of sunglasses but since I always wear them, I try to keep few pairs lying around.
Last year was my 15-year anniversary at work and I was given a catalog of gifts to choose. I decided to splurge and get some Maui Jim sunglasses. I looked them up on some websites and it looks like they sell at
Amazon in the $170-$200 range. I am very pleased with them. The glass lenses are so much nicer than the plastic ones in my "cheapos". They are polarized which makes them great for driving. As a paramedic, I do a lot of driving at work and these glasses are great in the rain and the early morning/twilight hours. The biggest downside to them is their price. I got them as a gift, but if I ever break or lose them, I will be hard-pressed to NOT replace them. Because they are so expensive, I am extra careful with them. I bought a neck strap (don't care if it is fashionable or not...I'm not losing my sunglasses!) and I keep them in a hard case (included) when I'm not wearing them.