One of my biggest travel packing hacks is to keep your toiletry bag always packed! It saves you so much time from having to pack and unpack your toiletries after each trip, and it guarantees that you never forget anything. Yes, it is more expensive to have 2 of most things; but, you can just throw 1-2 things off this list into your cart every month and have a fully-stocked toiletry bag for your next trip. Then, all you have to do is remember to buy any refills as you run out.
Oral care
I'd start with buying oral care, because most other basic toiletries are offered by hotels. A cheap way to do this is to ask your dentist for a toothbrush/toothpaste at your next visit. Toothbrush and toothpaste companies are always giving them samples to hand out as freebies! If you have a trip coming up before your next dentist appointment, then you can easily find travel toothbrush kits that comes with a folding toothbrush and toothbrush cover, toothpaste, and mouthwash for less than $10.
Basic haircare
Next get a travel hairbrush, hair ties, and bobby pins. These usually aren't offered by hotels, and it's good to keep several stashed in your bag because it's easy to forget to put them back after your trip, so your stash will likely dwindle each trip. I prefer to pack a smaller hairbrush because it takes up less space. I also keep just a cotton hairband in my toiletry bag. This is great for keeping my hair out of my face when I'm washing my face, doing my makeup, or just traveling on a windy day.
On the other end of the "hair" spectrum, they make mini travel razors that are perfect to keep in your bag! The handle is much smaller so it can fit in your toiletry bag easier, and it comes with a case so your razor blades aren't just exposed out in your bag. I also keep a mini tweezer in my toiletry bag, which I've used more than I expected!
Related: What's in my travel hair care bag
Personal hygiene
Basically all hotels will offer cheap shampoo and body wash, but most don't offer conditioner. Because of this, I pack a travel shampoo, conditioner, and body wash set. I specifically use the Sol de Janeiro brand when on vacation because it smells like vacation in a bottle! My husband loves the smell, and I always get compliments when I wear this. If you're worried about your liquids spilling, you can cover them with silicone leak-protecting covers.
For deodorant, I strongly recommend that you not only get the travel sized to save space, but that you get roll-on deodorant specifically for traveling. Toiletry bags get smashed around in your bag, and time and time again I've had stick deodorants break on me, so I've switched to roll-on to keep that from happening.
Skin care
At the very minimum, I keep a makeup removing cloth in my toiletry bag. All you do is add water to remove your makeup, so you don't have to worry about makeup removing wipes drying out or running out. While I can't say that it removes ALL of your makeup, it does a really good job for just requiring water.
To actually clean my skin, I keep a small travel-sized set of cleanser and moisturizer in my bag. It feels sooo nice after a long day of traveling to wash the travel grime off your face and put on a nice moisturizer. For daytime, I also keep a travel-sized SPF moisturizer to wear every day. Even if you're not planning on being out under the sun all day and don't need to lather on the sunscreen, you're likely to be outside more often when you travel than when you're not at home, so a little SPF will keep you from being pink at the end of the day. I also keep a lip moisturizer always packed.
I've recently added blemish patches into my toiletry bag. Sometimes the stress and poor air quality of travel will make my skin break out, and these are great to throw on before bed so that you're blemish free for the next day.
Miscellaneous
This isn't exactly a toiletry, but I always keep a silicone "bra" in my toiletry bag, just to make sure it's packed! I usually travel in a sports bra because it is the comfiest option, and really comes in handy when I find myself running between gates to catch a connecting flight. But, I've been stuck in a situation where it was a mostly chill trip so the sports bra was perfect for most days, we had one day where I needed a strapless or thing-strapped top/dress and only had a sports bra. A silicone bra is very easy to pack and works with basically any top.
