i have a friend who uses a claybar (forgot actual term) but it's used during the pre-wax stage. how effective is that and how much does it cost?
i have a problem keeping the windows clean. i've tried newspapers and terry cloths, but i always end up with streaks?
what're your guys' secrets for washing windows? it's also a safety issue as my swirls sometimes reflect light oddly and hinders my night vision.