Our clear rubber stamps have been tested by me personally, to ensure that they will give a clean and crisp image. In cleaning we recommend that you spritz a shammie or microfiber towel with your choice of cleaner and wipe the stamp clean while being on the block. This will protect your stamp for many more uses to come.
We found that an inexpensive and effective cleaner is SIMPLE GREEN diluted with water and a teaspoon of glycerine! Cheap, effective for your budget.