The workers at a grocery store are already spending time setting and changing price labels across the store on a regular basis. (Such as for the many changing s

The workers at a grocery store are already spending time setting and changing price labels across the store on a regular basis. (Such as for the many changing sales most stores have.) They often have a digital, hand-held label printer. It would be extremely simple for that printer to just print the local sales tax on the label. Not to mention the vast amount of online shopping Americans do, where it would be trivial to include a local sales tax. (Every online store I'm aware of already immediately asks for your location and tells you to search for the nearest location anyways.) I also reject the idea that most Americans wouldn't value this. I would bet money most Americans would prefer it -- they just aren't aware that other countries are capable of doing things better.