Well...I finally did it...I packed up the shopping cart cover!!! We got it when The Professor was ~6 months old and it's been in the car ever since. The timing of the kids' births never allowed for me to put it away. Well, Doodlebug is old enough not to need it. And, quite frankly, it's getting to be a pain. I pulled it out of the car after our last shopping trip, washed it and it's ready for the next box destined for the attic.
I'm also packing up the high-chair cover, though we haven't used it for several months anyway.