I tried the Peeps - they're a good back up for field work but I wouldnt have them as my first weapon against finger grease.
As Cortinaboy stated - its a pretty slow process compared to others and you may have to do multiple passes to get rid of the filth. Could be some driver error involved but its still going to be slow
Lens cloth and spray hasnt been fool proof either - quite often takes a second pass to get rid of spots.
So far the best method is dishwashing liquid under running water. Quick and fool proof and does the best job - but I still have to get my hands on some single use wipes before I can make my final judgement on what works best for me.
