I have iced tea or iced water at my side all day long, and the condensation pooling on my desk or computer table is appalling. I’ve had lovely coasters – made of sandstone, or cork in stone – and none of them work at all. I usually end up with a folded paper towel. Yesterday I decided it was time to make my own. I was in bed without the computer, so I threw together an easy peasy little design.