I should probably just reuse something I already have, such as some plastic bins. Why do I need something new to do this? It seems as though it would be space-saving in general, it still is too big for either of my patios. I need to find something smaller, and I need to be more innovative.
Edited to add: This is my teeny patio today, with native (desert, low-water) species I planted last week. To the right is a gardening bench with tools, gloves, pots and the like. To the left are pool things, kids toys, a recycling can and a full storage closet.