I've been meaning to put these up for a long time. I depend on these grocery list pads. Instead of writing your list, you check off what you need (they have blank lines for unlisted items), significantly decreasing the chance of forgetting anything. I don't know what I'd do without them...they keep me sane. I completely dislike grocery shopping. Also, I love the fact that they're set in categories, so I don't find myself running from aisle to aisle. Zach found this for me at Anthropologie, but I've seen them at Pier 1 as well.
p.s. I also found this entertaining.