eco bag

Recently stores have been offering reusable shopping bags as an alternative to the disposable plastic ones. It's very easy to make your own, though, using lightweight fabric and seam binding. Attach a button and you can keep it rolled compactly when you're not using it.

The pattern for this bag wastes very little fabric -- none if you use the cutout section to create the pocket on the front -- and is therefore very popular. Here are some other pages on how to make the same bag:
http://www.irodoriplus.jp/page/16
http://allabout.co.jp/family/yarikuri/closeup/CU20070415A/index2.htm
http://longriver.cocolog-nifty.com/turezure/2006/07/post_3a6d.html