Digging through a draw of tradeshow swag the other day I found this neat microfiber cleaning cloth from Spudz. It’s hard to make anything special out of a lens cloth but the neoprene sleeve and sturdy clip make this one perfect for hanging on the keyring – for anyone who wears glasses that’s pretty handy!

I have no idea why I didn’t use it before, but it’s with me all the time now. They’re pretty cheap so if you’re a glasses wearer you should give them a go. You can get them from Warehouse Express from £4.99