We always hear, buy in bulk and save! Even though there are exceptions to this rule, dog food is not one of them!
For a while, I had coupons and rebates making the 3.5lb bag a better deal. Then, those ran out and I continued to buy the smaller bag because of the convenience of the smaller bag size.
Now lets do some math, if I buy three 3.5lb bags (at $3.99 each), total is $11.97 for 10.5lbs of dog food.
Or, I could pay $9.99 for 16lbs of dog food! That is like getting 5.5lbs of dog food for FREE. The big bag is the BEST deal by five and a half pounds.
Then, I use an old pitcher for storage and convenience.