Getting back on subject!!!
As well as most of the above ideas, I also use big sweet tins for my craft stuff, ribbons, threds, paper and foam shapes, in fact, anything that fits!!!
the only thing is, try to keep the mountain of tins the same shape, I've had round ones and hexagon shapes stacked up, but a bit precariously! So I try to stick to one shape per stack, but I like the square biscuit tins more, they are in a kitchen cupboard with my homebrew bits in and cake decorating stuff in another one.