> > On a related note Walmart is going to start pushing for > RFID tags on all > >products it sells, that'll mean when checking out you won't even have to > >remove the item from the shopping cart! TTYL > > I heard that as well. > It's hard to believe that they have the margin for that, but I > guess if they don't have a register or cashier... Well, Walmart did the same thing with the UPC code in the 70s, the time savings alone will allow for fewer cashiers. Also inventory becomes much easier with RFID since the items don't have to be removed from the case. > Of course there's the little problem that I might bring something > in with me that still has a tag on/in it, then they try to sell > it to me twice. Chances are there will be a database that would should that your particular item had already been paid for, at least that's how I'd do it. Another option is to flip a bit in the tag to signify the item as "sold". TTYL -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.