Tupperware MultiKeeper Multi Keeper
The roomy 7.5L can be used for a small toy box, fishing tackle, hobby and craft materials and many other uses. Note this does not have an internal tray. It a simple big roomy container with a hinged seal.
The 2.0L is also very handy. Store cards, pens and pencils, and a multitude of other items.
7.5L Emberglow Raspberry 29.5cm x 21cm x 21cm high
2.0L Lime Green 29.5 x 21cm x 10.5cm high
Smaller sizes fit lots of pens and pencils in. Also a great size for a lunch box. I haven't yet measured it.