They all studied at Oxford They all won the Nobel peace prize They all own oil companies They have all been trialed in Europe for war crimes What do the US presidents Andrew Jackson, Theodore Roosevelt and Richard Nixon had in common?
Zap a wet one in the microwave for 2 minutes every day and replace it every 2 weeks. Better yet, use cloths, towels, and rags that you can toss in the washer or clean with bleach.