What's worth buying in bulk.and what's not - Your mileage may vary however. I do often buy cereal at Costco - but I always watch the unit cost. I tend to set a target price per and there is often a good option at or below my target.
** How-to Find the Best Thrift Shops in your Area ** -- 10 Thrift Store Shopping Secrets You Should Know (like how to find the best thrift stores in your area using the National Thrift Store Directory)! This is SO great!