buy some cloth grocery bags and start walking to the store or small
markets, or for regular errands. start biking to work. get a rack
and small trunk bag (google it), for your bike and use it for small
errands around town. you'd be surprised at how much quicker you can
actually get things done than driving from parking lot to parking lot.
(there's lots of logistics on how to use bikes for regular commuting
and errands on bikeforums.net)

The wife and I ride bikes to the store whenever possible unless what we're
getting is too big to carry (the closest is 5 miles away). We seem to be
the only ones around who do it; it's sad. It's also a shame bikes weren't
considered here when the roads were built (or when drivers were taught for
that matter).

Since we both ride, one of us waits outside with the bikes while the other
shops. We can carry considerable groceries in 2 backpacks.

I have no doubt we'd weigh 50 more pounds than we do otherwise, as we eat
pretty much whatever we want.

As a result, we can both fly in a 150 with full fuel! We even have
folding bikes for the plane.

I think Jay said he was going to start doing this too. I wonder how that
went?