You can buy these really neat Lego storage systems, but they are very expensive and certainly not in our budget. So I came up with my own method for controlling the Lego madness. The smaller sets work well in the $1 shoebox containers from Dollar Tree. I cut up the Lego box and tape the picture of the set to the top.
And then I also tape a smaller picture to the side, since we stack the boxes in Pierce's closet. This makes it very easy to find the set you need.