I am such a “list” person with my daily “to do” lists.  And making out a grocery list is something I do weekly.  I always look at the grocery ads for products I use that are super bargains (“loss leaders”) at each store and add those items to my list.  There are certain staples that I put on my list when we start getting low on them such as Ezekiel Bread and Central Market’s Organic Frozen Corn.   I don’t buy diet pills, but I do order vitamins and supplements online which means a whole different list.  Having lists helps me stay organized, be more efficient (I still have plenty of room for improvement), and save money.