Till the End of Time by Suzanne Elizabeth

He's Scott, the dumbest fighter pilot to ever be trusted with a top secret time travel experiment! She's Rachel, a Civil War spy who has somehow never worn a corset! It's Till the End of Time, a 1994 time travel romance by Suzanne Elizabeth that has twenty whole reviews on Goodreads!

This is a silly book, so there isn't much to warn you about except that this man is incredibly stupid and that your tax dollars are being lit on fire, and you would not believe the terrible packing on display here. The book does (I mean this is a low bar but) understand that slavery is wrong and is entirely on the side of the abolitionists in it, but it does also fail the seriousness test in that upon time travelling and meeting enslaved people the hero just takes it in stride which is distressing.

So I couldn't remember everything when we were recording but these are the ten essentials you should always take when you go out in the wilderness OR WHEN YOU ARE TIME TRAVELING (even if it's a totally familiar trail - day hikers are the ones who get in trouble outdoors because they underplan!)  On a routine hike you might not need any of them, but if the shit hits the fan you'll be glad you prepared - think about the worst that could reasonably happen that you could prepare for and pack for that.  Usually that's a night out in the rough, a sudden weather change, or an injury anywhere between annoying and serious. Think none of that will happen to you? Then plan to take this stuff to help somebody else.

1. Navigation: map, compass, GPS, consider a PLB for real backcountry or backpacking trips - best practice is a paper map and compass as a backup, don't just rely on your phone!
2. Light - a flashlight or headlamp can weigh next to nothing and you'll be extremely glad if you need it! Again, don't rely on your phone for this. Throw one in your suitcase too, I use mine a lot when I travel.
3. Sun protection - hat, sunglasses, sunscreen, long sleeves, whatever you need. Best practice for looking hot your whole life.
4. First aid - a simple kit including foot care and insect repellent can go in a sandwich bag at the bottom of your pack. It doesn't have to be elaborate, snakebite kits are nonsense, but you want to be able to stop bleeding, protect a blister, splint a limb, tame an allergic reaction, take a bee stinger out, that sort of thing. Leave the suture kit for people who know how to use one - if you do, you shouldn't be getting your first aid tips from a podcast about romance novels. (Pro tip, you're gonna want most of this this at Disney too!)
5. Knife, and anything you might need to fix the rest of your gear. (So, if you have a tent, make sure you can temporarily fix a broken pole.) Roll of duct tape around a Sharpie is a good idea.
6. A way to make fire - assume everything will be wet. No, you probably cannot do this with a bow drill in an emergency unless you've done it before.
7. Shelter - can just be a space blanket, I have one in all my backpacks and my car's glovebox.
8. Extra food - beyond what you're scheduled to need, you never know when you'll get stuck or encounter somebody in trouble.
9. Extra water - same idea. A water filter, if you know there will be water sources, will work.
10. Extra clothes - you can get wet, or the weather can change.

How many of these does our erstwhile Air Force captain take with him a hundred and fifty years into the past? Well, he has some sweatpants, some snacks, and a flashlight.