I bought a set of plastic food containers with lids that comes with its own storage rack. It is so easy to use! There rae 3 different container sizes and they all use the same size lids. I have gotten rid of just about every other plastic food container, since I never developed a system for keeping containers with the lids, and in fact I had lots of lids and lots of containers, but very few that actually fit each other.

I did get a PDA, which helps, but I know I could make more use of it if I sat down and learned all its features.