Joined: Jan 2009
Posts: 6,643
Likes: 2,369
From: Colorado Springs, CO
Bikes: 2015 Charge Plug, 2007 Dahon Boardwalk, 1997 Specialized Rockhopper, 1984 Nishiki International, 2006 Felt F65, 1989 Dahon Getaway V
I think a trailer would work best for large grocery runs. Just google "Bikeforums.net groceries trailer"
And you could still add panniers or baskets (Wald folding baskets) for more carrying capacity. (Don't forget about front panniers too.)