Amazon has 10-piece set of Rubbermaid Brilliance Food Storage Containers for $13.04. You can get free shipping on orders over $25 or with Amazon Prime orders.
These containers sport a modular design that allows convenient stacking in your fridge or lunch bag, saving you some much needed space. No need to unstack and unseal multiple containers to find a specific dish; their crystal clear Tritan construction lets you see what you’ve stored at a glance. This material also provides stain and odor resistance to keep the container spotless and fresh after every use.