This will give them less time to warm up before you get home. Save hot chicken and other hot foods for last, too. This will give them less time to cool off before you get home. After shopping, get home as soon as you can. Then put food into the refrigerator or freezer right away.
Eggs always go in the refrigerator.
Make sure that you and your kitchen are clean. Always wash your hands before you touch food. Use warm water and soap. Wash everything else before and after it touches food. Wood cutting boards are very hard to clean.