Since most of my favorite bulbs are too tender for my garden and would probably die over the winter here in Chicago I need to be able to plant them and later find them. The problem is that once fall comes around I sometimes forget about where I placed them. This year I have been using things like this strawberry basket from the grocery store.
By placing them inside of something like this basket I can plant them and in the fall when they are ready to be lifted I can find them easily simply by locating the basket. You can also create something similar out of chicken wire to use for your summer bulbs in the garden or place the bulbs you have to lift in large enough pots.