I have found a good way to save on all those anti-bacterial wipes. I use an empty container and cut up paper towels, usually in four pieces, then roll them up, stuff them in, and pour rubbing alcohol over them so they are wet. Alcohol is a great anti-bacterial and you can find it for $ 0.50 - 1.00 a bottle. Great when you need to wash your hands. I use them a lot in the car.
Just make sure that the container seals completely or else the alcohol will evaporate.