My endless grocery list

I keep myself organized by maintaining a running To-Do list of errands, shopping, etc.  Without it I am lost, and as you'll know from a previous post, I am obsessive about keeping it tidy!  The bottom right corner is always given over to supermarket needs, and I cut it out and take it with me to the store to make sure I don't forget anything.

No matter how meticulously I list the groceries I need, I always come back with a ton of stuff.  I have heard friends say the same thing - if there are 10 things on the list, you come back with 12 (or more!).

So ... is it me who consistently forgets what I've run out of ... or the store that sends psychological messages to my brain making me buy stuff?   Hmmmm