H.G. Hills has ground beef on sale all week. (Their ads run Monday to Sunday). It comes in a family pack size.
This is not the leanest ground beef (probably 80/20). I brown it, drain it as well as I can, place it in a colander and rinse it under hot running water to make it leaner. This is a really good strategy if you are going to season it heavily for tacos, spaghetti sauce, etc…
While you are there, you may want to check out:
Temple Oranges 4lbs/2.50