Anyone who does any kind of art or craft work is familiar with the concept of a stash. A knitter for example has a stash of different kinds of yarn. This really helps to get the creative juices flowing. In bento making terms, the equivalent of a stash is _joubisai_ (or _johbisai_) (常備菜). Literally this means 'always available food'. They are stored foods that can be kept for a