1. Do you wear them all the time? Alternate with contact lenses? 2. How often do you change/upgrade? 3. Do you misplace them often? I wear mine when I'm watching the TV (or when I go out and it's important to read from a distance). My daughter just broke my eyeglasses today so I'll have to change it. I got it in 2004. I haven't upgraded since, and I haven't had my eyes checked so I don't know if I probably needed another type of lens. I do have a back up pair (lower grade) which was the one I had before this one. Now if only I can find it... I misplace them every now and then (I always find it, of course) and it's one of the most annoying things to lose because the difficulty of looking for it just reminds you how much you needed it. "If I had my eyeglasses, I would have found my eyeglasses faster." (something like that, haha).