How dee doo dee, been in business 10 years and have cleaned many a conservatory roof both inside and out. I have always used pole system on outside and more recently a little soft washing. Inside I hate being asked, I reluctantly say yes and charge enough to make it bearable. A combination of squeegee and applicator if tiles floor and ladder and clothes if carpet etc. I have now been asked to do a massive interior glass clean. Has anyone got any better ideas of tried out any of the interior glass cleaning systems. I have seen them advertised but have never used one. Before I purchase one, any thoughts based on experience would be most welcome. Jack