I'm glad you said it's A LOT of work. I was getting encouraged and thinking, I'm near a few CVS's yet literally never go (I'm a Walgreens shopper for years). Now I think I'll remain where I am. A lot of work doesn't interest me anymore.
my top three retailers I use are grubhub because we like their food delivery service. Ralphs because I work there and saving every cent or dollar helps. Amazon because I order a lot from them.