Go green by going...blue.

Speaking of canvas bags, check out Blue Avocado. Started by a small group of moms who wanted to do their part in greening the world, Blue Avocado makes reusing bags easy and cute. I found them through Superforest (because they are awesome) and at first I wasn't impressed but after browsing through their site, I was sold. They offer a lot of great info like tips on remembering your bags. What I like most about their totes is how easy they fold and stuff into something tiny (for easy carrying around). Their commitment to sustainability is also a plus. Watch this video about their Billion bag pledge aimed at reducing the use of plastic bags:

BTW if you've never gone to Superforest.org, pleeease do so now. Really. Go. They are the shiz.