You might find them (washable, reusable pee pads) cheaper somewhere else but I like to buy from this company because it supports disabled people. It seems very cheap until you add the shipping.
However, the packages are heavy which makes the shipping expensive.
I have been very pleased with any/all products I have purchased from this company! I can't recall how I heard about them but it must have either been through a search engine or Yorkietalk.
http://www.odcmerchandise.com/default.asp