One of the other benefits he mentions is that sometimes Safeway offers coupons like "Buy $20 worth of groceries, Get $2". Unless you look for and add that coupon, you'd miss out on it, with the script, it's always activated.

I also use the Safeway app, which I think is one of the better apps out there, but sometimes they add in a coupon for something free. Unless I'm looking for that, I might miss it. I'd like to modify the script to look for and notify me when it finds them.