The "Internet connected refrigerator that manages food for you" has been an example of this sort of thinking for at least 10 years, and it's no closer to being something that anyone actually wants.
I was thinking of Google watching the advertising of food products and tracking how much of that results in purchases that end up in your fridge.
Advertisers would give their left arm to be able to close the loop from ad to store to home. I know the "club cards" can kind of do that now, but the stores have no idea what ads you saw before walking in (other than the coupons in your hand).
John Ringo has a book set called the Troy Rising series where multiple characters get implants connected to the network. The description of bill collecting and advertising is hilarious, great for advertisers, and a strong reason not to get said implants.
