Three grooming fixes for the moments your hair, skin, and scent fall apart on the go.
The makeup-removing towel that replaces five travel bottles

Hotel bathroom lighting will gaslight you into thinking you got all your mascara off. Then you wake up with that gray raccoon smudge stamped onto the pillowcase, and your under-eyes feel like sandpaper because you rubbed too hard with a scratchy washcloth. The fix I keep coming back to is a legit makeup-removing towel (MakeUp Eraser is the common one, but any soft microfiber made for face works). It sounds like a gimmick until you use it in a place where your usual routine is impossible.
Here's how I do it when I don't trust the sink water: I run the towel under warm water, wring it so it's damp but not dripping, and press it against my eyes for a slow count to ten. Not wiping yet. That little soak is what melts mascara and eyeliner so you don't have to scrub your lash line like you're sanding a deck. Then I use the corner to swipe along the lash line, fold to a clean section, and repeat. For base makeup, I go in gentle circles around my nose and mouth first (that's where foundation cakes), then I finish with a quick pass over my hairline where tinted sunscreen loves to hang out.
Two details that matter in real life: first, bring a tiny bar of fragrance-free cleanser or a travel Deciem/The Ordinary squalane cleanser if you want a second step, because microfiber plus water can remove a lot but I still like a quick cleanse before moisturizer. Second, hang the towel somewhere it can dry. If you leave it balled up on the counter, it gets that sour damp smell fast, and then you're rubbing a musty rag on your face. I hook it over the hanger in the closet or the towel bar by the shower, and it's dry by morning.
When you pack one of these, you can skip micellar water, cotton pads, and a backup wipe pack. It also saves you from the worst version of travel skin: over-cleansed, tight, and weirdly bumpy because you were too aggressive trying to get makeup off under bad lighting.
Your hair doesn't need a full wash, it needs a scalp reset

There's a specific kind of gross hair that shows up right before plans: not dirty enough to justify a full wash, but heavy at the roots and oddly flat at the back of your head where you can't see it. If you throw more dry shampoo at that, it can turn into the dreaded gritty helmet by hour two. What helps is treating it like a scalp cleanup, not a perfume situation.
I do a quick part-and-target routine with a powdery dry shampoo (Klorane's oat milk aerosol is a classic for a reason, and Living Proof Perfect hair Day works too if you can handle the scent). The move is: make three parts, not twenty. One down the center, one over each temple. Hold the can 6 to 8 inches away, spritz a light line onto the scalp, and stop. If you can see white foam sitting on your hair, you already did too much.
Then I wait. This is the part people skip because it's boring, but it's the whole point. Give it a full minute so the starch can grab oil. While you wait, use that time to do your face stuff: moisturizer, SPF, maybe a quick brow gel. After the minute, I use my fingertips to press and wiggle at the roots like I'm shampooing without water. Not scratching. Just firm little circles. If I'm in a rush, I'll flip my head over the sink and blast the roots for five seconds with a hair dryer on cool (or low heat if the bathroom is freezing), then I brush through with a boar-bristle style brush or a compact brush.
What I notice when I do it this way: the lift lasts longer, and my scalp feels less itchy later. Also, your ends don't get that dusty, dull look because you didn't coat them in product. If your hair is fine and the crown collapses fast, clip the front sections up for three minutes while you finish getting dressed, then let them down right before you walk out. It's not a blowout, but it looks like you slept like a functioning adult.
The only time this doesn't work is when the oil is mixed with sweat and product buildup, like after a hot commute or a workout. That's when I stop fighting it and commit to a real wash, because no amount of powder is going to outsmart yesterday's gel.
The pocket fragrance method for warm weather and close quarters (yes, it matters)

Perfume gets weird in heat. The same spray that feels cozy in February can turn sharp and loud when you're standing in a crowded elevator or squeezed into a rideshare with the windows up. I've learned (the hard way) that the move isn't to skip fragrance, it's to switch to a controlled format and place it where it won't project like a fog machine.
I keep a travel spray or solid perfume in my bag. The solid is underrated for this, especially if you like something with a big personality. Diptyque's solid perfumes are expensive but the format is perfect, and plenty of brands do a cheaper balm version. The routine takes ten seconds: swipe a tiny amount on the inside of one wrist, tap wrists together once, and then press that wrist lightly at the base of your throat. That's it. No hair mist, no double neck spray, no walking through a cloud. If I'm wearing a white T-shirt or anything delicate, I avoid the collarbone area entirely because oils can leave a faint mark on some fabrics.
What makes this work is that you're putting scent on pulse points that warm it up, but you're not giving it maximum air time by spraying onto your outer clothes. It stays close. People who hug you will notice it, people sitting two rows away won't. That's the whole goal in offices, planes, theaters, and basically every summer event where you're going to be too close to strangers.
One more thing I do that feels fussy until you try it: if you wear sunscreen (you should), apply fragrance after your SPF is fully set and your hands are clean. Sunscreen and perfume mixing on skin can smell off, especially with mineral formulas, and it can shorten how long the scent lasts. I give it five minutes while I put on shoes and grab my keys, then I do the wrist swipe.
This is also the only fragrance approach that's survived my own test: reapplying mid-day without accidentally creating a scent situation. You can top up with one more wrist swipe after lunch and still feel like a person, not a department store counter.