Many US groceries carry the .99 cent totes but they don't offer the typical shopper any "convenience" other than the consumer's desire to "go green" and eliminate another guilt trip in our cluttered minds. Personally I disliked having to carry 8 mini-totes with me every time I go shopping... So last year I founded a company to market a tote that is functional first....and "green" as a side benefit.
This tote is expandable and clips onto the shopping cart to load the goods. The best part is that all you need are 2 of them, which fit perfect in the cart; $100.00 worth of food in 2 bags!!! They have a folding flat bottom so on the drive home they don't fall over...and once home...1 trip to the kitchen...I also market a beverage/wine bag which is great for wine or soda bottles and heavy cans. (Holds up to (6) 1.5 liter bottles).
They are made from polypropylene because it is safe for food, unlike the canvas/cloth bags can harbor mold and mildew and food borne bacteria. They wipe clean and drip dry if food spills in them, making them more eco-friendly than a bag made out of cloth or canvas which has to be washed month after month to keep it bacteria free.
Read the testimonials on my web-page and you can tell the consumer response to the product...they are real people excited about a simple tote...because it has made their shopping experience better.

Winning the war on plastic bag pollution means delivering a functional product first...that has green benefits.... (via Eco-totz.com)