I have a great pair of Tifosi glasses that came with interchangable lenses. Here's my experience:
- Pull glasses from case and stare at them quizzically.
- Push and pull at lenses gently, hoping to figure out how the hell to remove the lens.
- Give up and put extra lenses back in my sock drawer.
- Clean fingerprints from glasses.
- The next time I'm riding in the dark/dusk/fog/rain swear I'm going to figure it out next time.
- Repeat as necessary.
Thanks, SadieKate, for your instructions--I'll give that a try tonight!