About a year ago I started replacing my 1970s Tupperware with Pyrex storage.  I love the fact that these containers can safely be used in fridge, freezer, oven, microwave and dishwasher, and that there are so many sizes available...I have 1, 2, 3, 4, 6, 7 and 11-cup containers, some round, some rectangular. 



I enjoy using