I used to wonder the same thing, then I discovered THE 3D GLASSES [sm=shades_smile.gif] Here's the secret, normal glasses allow you to see things pretty much as you would see them with no glasses at all. Now the 3D's filter everything out into into its elements, in effect allowing you to see in perspective and angles. Amazing stuff for sure because even though they are clear like regular glasses they are even able to filter out the sun as if they were tinted!

Now pay attention carefully, as a guy, you don't want to wear them while trying to pick up a girl, or you'll surely have no hope, the trick is to give them to the Hot Bird!

That way she'll see everything in perspective and she's hooked, problem is after wearing them, she won't want to leave you, much less take them off!

They come in several color frames (mine are red)........now if I can just find the lady that sold them to me, I can ask about the indoor option. (and blue ones!)

Good Luck with the Hot Birds and Tailfeathers!