Two simple things that you can do are to (a) don’t wash plastics in the dishwasher and (2) don’t microwave stuff in plastic containers. This last will require taking stuff out of the disposable container that many frozen meals come in to cook it. Some brands have a cardboard/waxpaper tray instead of a plastic one although there might be identical looking packaging that has different internals based on the store (I remember being surprised to discover that a frozen meal I bought at Whole Foods had the cardboard bowl while the same meal from a regular supermarket had a plastic bowl).