Well, initially I thought that I'd call a professional cleaning company twice a year to do that. But I did clean them two months ago and I did manage :). My brother in law is a climber and I used to do wall climbing as well, so I put on a harness, sling around the chimney, Karel was securing me from the balcony and it went smooth. It is hardened glass so you can stand on it.
It cost me couple of beers :D.
Check it out:
blender-house.spaces.live.com/photos/cns!C04B5FFE6DF805D6!223/

(the last two are actually just for fun, you can get there from the ground hehe)

V

awsome man that most have been a fairly big project.

that is really fun - very creative!

Very Good!

Thank you for your tutorials. That's exactly what I was looking for. You did great job.