About the only two things I still buy in a Brick and Mortar store are... wait for it... bricks and mortar! They're too heavy for UPS!
Joking, but it's not far from the truth. Aside from groceries and lumber or building supplies, nearly 100% of our shopping is online.
I grew up cursing the local hardware and auto parts stores for always closing before I got off from work, and being closed most of the weekend, precisely when I was working on projects. Then along came Heckingers, Home Depot and Lowes, who had better selection, better prices, and infinitely more convenient hours. I never understood why anyone was sad to see the mom-and-pop stores disappear, with their higher prices, shorter hours, and lesser product selection. I can only guess it came from nostalgia more than logic.
Now, ironically, people are lamenting the closure of big box and large department stores, due to online competition! Weren't those corporations the enemy, just 25 years ago? Weird.
Amazon was at my house three times today, dropping off 7 packages. Just another average Tuesday. They aren't the cheapest, but they're the fastest and most convenient, keeping me from wasting hours and gas driving around God's creation in my perpetual hunt for oddball items. I almost can't imagine how I managed before online shopping, and other than valuing a dollar or two saved more than an hour or two wasted, I have trouble understanding anyone who still prefers driving to a store for small items.