My neighbor is the type of person who is always trying to save a lot of money. He does this by buying in bulk for almost everything. He buys mayonnaise in large cases or gallon containers. He purchases his beef in huge amounts and freezes whatever he cannot use quickly. He buys almost all of the things that he uses regularly from warehouse stores.
When it comes to maintaining his car and his boat, he also wants to save money by buying in bulk. He buys bulk motor oil for his boat and gets cases of engine oil for his car as well. When he buys soap for washing his vehicles, he buys it in the large gallon containers and uses it for both. He seems to save a bit of money just with his bulk shopping habits.