Most grocery stores throughout the US carry a few British products, not always in their own section. Digestives (McVities especially) are popular. Some of the sauces and teas. Typically not the candy, biscuits, and crisps though :(.

Most places with say at least a couple hundred thousand people will have a dedicated British import store, usually run by an expat with a much larger selection.

I think watching too many BBC dramas (Netflix you aren't fooling anyone with your "Netflix Original" British shows) causes many Americans to seek out some of your more interesting products. And we do actually like tea, its not as popular as coffee but we drink a fair amount of it.

Also the Bake Off has caused a huge surge in baking here and while most stuff is easy to get you definitely use a few items that are hard to substitute here. I was ecstatic to find Treacle and Golden Syrup the other day in Nebraska. Definitely some delicious bakes soon. I just wish we could get your double cream.

I was just having a bit of fun with the warning label meme. I promise not to accidently burn down any hotels!

Be sure to replace your fire extinguisher quickly, I have a feeling you might need it again.

I have stayed in many hotels and never have I seen a warning to not make grilled cheese sandwiches with the included iron and ironing board.

I second the Booker short list (they dropped the Mann part which was a sponsor).

But I'd like to add Pulitzer, I know it sounds like an odd choice but I discovered Anthony Doerr for "All the Light We Cannot See" due to it. He is awesome if you haven't read him. His latest is "Cloud Cuckoo Land".

What does that thing cost? I'm sure more expensive grocery items are exactly what people need for the holidays.

I can't think of a better choice than Harry Potter for both. You might try listening to the audio book in the car or something for a bit to get them hooked.