Many plastic bags come with a printed warning "May cause suffocation in children."  I wish this warning also included animals.  If you use plastic bags, please store and dispose of them properly and promptly.  Each year animals, pets and wildlife die after encountering these bags.  Some die of suffocation if they crawl inside while others die of gastrointestinal obstructions after eating them.  Either way, it is a horrible death.  The picture below shows what we as pet owners must never let happen.  

Also just as a reminder, please wash cloth bags between grocery store runs.  The bags may become contaminated with bacteria from raw foods and cause illness. You may also wish to separate meat and poultry items into a separate bag from perishables.