I always seem to get stuck in the "closeouts" section of Marc's buying something I didn't know I needed. From clothing (yay for Target clothing for $2.99), to patio accessories (the Umbrella for my patio for $40!), to teaching supplies (educational games, regular games, dry-erase markers, etc. all dirt cheap!) I'm bound to find something I can't live without.
Then let's move to the produce aisle. Cheap produce everywhere.....and even organic. Personally, I find Marc's has a better produce selection and of better quality produce than The Bird ever does, and generally for less $$ (The Bird = Giant Eagle).
Across the board, Marc's food costs me less money than other groceries. While they may not always have everything you need on your list, the trip to Marc's is worth it in the dollars you save and the unexpected closeout bargain that will make your life so much better.