I prefer to use a warm setting for the light coolers and a cold setting for the darker colors. Make sure that they go through the rinse cycle. Myself I prefer to let these dry naturally. Just hang them up on a plastic hanger if its cold outside or if the weather is nice hang them outside to dry. You may need to brush these off lightly when their dry before you put them back in the bathroom.
Vacuum keyboards regularly, using the soft brush attachment.
To dislodge particles of dirt and dust, turn the keyboard upside down and hit it lightly several times with the palm of your hand. Periodically, clean the keys with either a lint-free cloth dipped in rubbing alcohol or a commercial keyboard wipe. Be sure to unplug the keyboard first, or shut the computer off before doing any of this type of cleaning. Vacuum thin fabrics at a reduced suction setting to prevent the fabric from being drawn into the cleaner's nozzle. It might be helpful to place a stiff piece of plastic screen between the nozzle and the fabric, to prevent the fabric from being sucked into the nozzle.