Whole foods plastic bags are awesome

I’m a huge fan of the clear plastic bags from whole foods.  They are super strong.  I use them to keep my socks dry in camp if my shoes are wet, for laundry (add water and clothes, shake), for a garbage bag in my bear can, etc.

I take extras whenever I go to whole foods, but technically that’s stealing, and my stupid ethical conscious is starting to catch up with me.   Does anyone know where I can just buy a roll of these things?  Google is coming up dry..