You can save big on groceries by forming a little warehous club buying collective with your friends:
A reader wrote into the March issue of Real Simple:
Rather buying the same items separately, my friends and I buy in bulk from warehouse clubs and share the cost. We buy chicken, bags of fruit and vegetables, packs of hair products and condiments. (Yes, we have bought a gallon of mustard and separated it into smaller containers.) Not only do we save but we also get to spend time together, even if it’s just running errands.
You get the bulk rate discount but don’t have to have an institution-sized drum of mayo. Great idea!