I really am quite paranoid about touching the lens, so usually, I just use solution to clean the filter. Am I doing the right thing? I was thinking, since I've always got my skylight filter screwed over the lens, the lens should be clean right? Btw, is there like the most proper method to clean filters other than 1) Blow off particles with blower 2) Spray the cleaning solution on cloth provided or lens cleaning paper, then rub in circular fashion 3) Blow dry or wait for it to dry? Please enlighten.