They're really nice, actually. I would say that they can hold up to 2-3 plastic bags worth of groceries. They also have a shoulder strap and some clasps to attach the bag to your cart while you shop.
It gets even better.
They cost $1.99 a piece.
The downside is that they are Home Depot's obnoxious orange color, but I think fashion can suffer over not having a garbajillion plastic bags at home.
I will post pictures later.