So, I gave my SL avatar glasses. I've never given my avatars or fursona glasses because I hate being blind but, at the same time, I can't see myself without them. The latter is why I decided to try to give my avatar glasses and it wind up being so good it was like it was always on him already. XD So I figured, I'd stick with it. On the SL side, I use different color glasses based on the overall primary color of the outfit.