My husband is not allowed to write on my grocery list. The reason: I write my grocery list out in the order of the aisles I go down. This way I’m not jumping from aisle to aisle for things. I also don’t have to use a pen to mark off items. Instead I just fold my list as I go to “mark” the items I’ve gotten. Check out my post on The Easiest Way to Grocery Shop for more grocery shopping tips.