i use sythetic chamois from
these guys. it is made of micro fibre sandwiched between two layers of latex. used to:
1. mop leaded windows before scrimming
2. to wipe up water off sills and where it drips off frames from the top panel
it's very easy to wring out, unlike leather.
what do you guys use as a mop? i know some still use a chamois leather, and others use scrims.....