Abstract: A flexible organizer comprising a flexible panel member and a pocket member, the flexible panel member comprising a fastener portion, the pocket member comprising a pocket opening and a fastener portion, and wherein the pocket member is releasably attached to the panel member via an engagement of the panel member fastener portion with the pocket member fastener portion. Such an organizer allows users to conveniently and efficiently organize items such as children's toys in a manner that allows easy and modularized access to the toys and easy clean-up of the toys. Also disclosed is a method for using the flexible organizer as well as a method for customizing the flexible organizer.