Make your own coasters- tiles, adhere picture/paper to tile with Mod Podge and let dry; Spray a coat of clear spray paint and let dry; attach felt pads to the bottom. Doesn't have to be beer coaster either!
Marshmallows as Brown Sugar Softener. Toss a couple of marshmallows in the bag or canister to keep the sweet stuff from turning rock-hard. This really works! I keep my brown sugar in a container with the marshmallows.