Although we have a lot of dog parks and dog poop bag stations near where I live, and the $1 store is always a great bargain, I realized quickly that just making do with free bags was not going to work with a 90 pound dog who is still growing.  The night that my nails tore through a paper-thin $1 store bag while picking up a giant pile of excrement was the night I purchased these bags and I am never looking back.  These bags are well worth the money and provide piece of mind that I will always have a sufficient and reliable bag with me, no matter what my dog squats down and provides on our walks.