How to stay sane at the Grocery Store

Sometimes, even if you only need a handful of items, being in the grocery store can drive you crazy, right? Especially on those days where the entire neighborhood seems to grocery shop at the same time and granny and gramps argue, in the middle of the isle, about which cereal helps them digest the best. To keep sane at the grocery store, I invested a whopping $10.00 on a magnetic grocery list divided into categories/sections (can be found at Target). This way, I am I am in the produce section, I can look at my list and grab everything I need, rather than grabbing a couple of things and 10 minutes later realize I need to get back there because I forgot something.
Also, as I use coupons, I invested in a $1.00 coupon organizer I also found at Target and divided it into the same sections as my grocery list is. This way I know exactly which coupons I have available for which product/grocery aisle.
You can also divide the organizer by the different stores you shop at or even where you have received the coupon from (i.e. Smart Source, RedPlum, Coupons.com, etc.)