When you live in the same house for 30 years, space seems to evaporate over time. These containers allow me to keep items out of sight and out of the way until I need them and afford me the see through convenience that I can find what I need when I need it. Also, getting older tends to play with your memory and the habit of seeing the items through the plastic each time you see the container helps to refresh my recollection of where things are when I do need to find them.
I currently have around 30 of these and it's amazing how many different uses they have. These are perfect for foods as well and make cooking much more fun, when half the battle is knowing what you have on hand at a glance :)
Thank you, Sterilite !