Anthropologie, Athleta, Target, Costco, Home Depot, Nordstrom and more will all do price adjustments for online purchases. That is, if the price drops within a certain time window after purchasing, you can contact them for a price adjustment.
For example, my mom just bought me two stand up paddleboards from Costco for my birthday.
I noticed they were running the same boards for $50 off on Black Friday. It takes a quick email and the price adjustment showed up on my credit card!
I started doing this a few years with the paribus app, which accesses your email and automatically contacts the vendors for you. However I can’t get paribus to work for the past few months… if anyone else knows of another service that does this let me know!