I've been looking around for anti-bacterial kitchen cloths that are eco-friendly and will deal with the issue of cross-contamination. I may have just stumbled across a solution. Norwex Enviro Products claims the following of their set of Antibac Kitchen Cloths:

The cloths are super soft and absorbent and mad of our famous Antibac microfiber which prevents bacteria from growing in the cloths and keeps them fresher for longer, as well as preventing cross-contamination. It is fast drying, further reducing issues with smelly cloths. These are fantastic for wiping up kitchen counters, table tops, stove tops, cleaning out the fridge and dealing with kitchen spills. Come in a set of 3 colors; beige, golden fleece and olive green. (via pristineplanet.com)