I have my price book set up (mostly) and I use it when I go through sales ads. We needed a few things today, so I checked the sale prices through cairo.com (a GREAT resource) and then found that Wal-Mart was cheapest on the items. So I went there, but they didn't have the type we wanted. So I'll have to wait, because the next cheapest place to get it is a buck more. Not worth it.
Frustrating to know where the best price is, but can't get what you want.