A collapsible bag of open mesh construction of synthetic cords provides a main, central pocket to hold shampoo and the like, and one or more closeable side pockets. The main pocket has drawstrings to secure the contents, and at the upper edge where the drawstrings close is a loop for hooking the unit on a hook, and also an openenable strap for releasable suspending the bag from a shower curtain or the like, the principle purpose of the accessory bag being to coordinate the accessories that one must temporarily take for use in a shared shower.