I spent 60 hours on Amtrak trains with a carry-on bag and a backpack. Here are 7 things I regret not packing and 9 items I'm glad I brought.

I had the option to check a bag, but I decided to keep all my belongings with me throughout the trip.

I packed comfy pants and shorts since I was traveling south to warmer temperatures. 

I brought a Nintendo Switch, a tablet, and a book to pass the time. I made sure to download a bunch of podcast episodes to my phone in case I lost service and internet at any point during the trip.

Even though Amtrak sanitizes rooms between visitors, according to its website, bringing my own disinfectant gave me peace of mind and made me feel more comfortable relaxing in my rooms.

This packing tip comes from my mom. She always brought some sort of immunity-boosting chewable to protect us from germs while traveling. And as Business Insider previously reported, Vitamin C can help your immune system fight off some infections.

I picked up these memory foam babies at T.J. Maxx for only $20. They slipped on and off very easily, which was great for leaving my room quickly with shoes on.

I took frequent dance breaks in my room, where I closed the curtains and blasted music in my ears. This, of course, required a pair of headphones. 

While I danced throughout the day, I was glad I could listen to music as loudly as I wanted without bothering my neighbors.

In some roomettes (mine included), a side table swings open to reveal a toilet. Above, there's a folding sink and mirror. 

I may have had a bigger problem with having a toilet so close to my bed, but thankfully, I had packed some Poo Pourri, a spray that goes in the toilet just before you poop to eliminate odors.

I thought many of my meals on the train were decent, but there were times, like when I tried and disliked a salmon dish, that I was thankful for this bag of trail mix with my favorite ingredient, coconut chips.

An Amtrak attendant brought me disposable water bottles every few hours, but I was still glad I brought my own pre-filled water bottle.

But my bottle was too wide for the provided cupholders, which were just big enough for 12-ounce bottles. So, I wish I had brought a smaller reusable water bottle.

I figured this would only be temporary, but I thought the whole ride was shaky. I ended up feeling motion sickness for the majority of both trips and kicking myself for not bringing any remedies.

I planned on showering during my 30-hour ride home from Miami, but I decided not to when I realized I had forgotten my flip-flops. I usually wear them in public showers, since experts told BI that it's pretty easy to pick up germs from places where many people have walked barefoot.

I only saw a couple of sets of outlets in the rooms. With several devices to plug in, I should have brought an outlet splitter or two. 

I could have sworn I packed this and was so disappointed when I wanted to use it.

This specific neck pillow wraps around 1.5 times, making adjusting to various long-term sitting situations easy. 

The bed on the Amtrak was firm and slightly cushy on top, just the way I like a bed. But when I was drifting off to sleep each night, I thought of my fluffy, dense, soft pillows at home.