The best way to effectively organize your bathroom closet is to follow a simple four-step process.  First, sort and edit the contents of the closet. Determine what can be donated, trashed or kept.  Second, categorize items so you know the quantity, size and types of items that will need to be organized.  Third, decide what types of storage you will use to organize all the things (i.e., baskets, bins, stackable organizers, trays).  Fourth, and final, map out how the storage containers will be arranged in the closet. Do this part with empty storage containers, as they are much easier to move around.