I use the bottom of my jumper.... my mate and I always said we could tell people who were new to specs-wearing because they used the natty cloth. Most of us just grab the nearest thing.
Don't we all boxy but now and again a good clean with these wipes makes a big difference. OH discovered them and, as he's a snob, they're the only thing he'll buy in Lidl!!
To sum up I need to wear a jumper, a cardigan & a nightie. Carry some fairy liquid, a bottle of computer screen wash. Use a bit of spit & polish & worst of all shop at Lidl.....It's not easy being in specs for the 1st time in your life:-(