During a trip, you may not know what you need till you need it. This means you might have to purchase these things while on vacation, so save money by bringing them along in the first place. With some of these items, you could need just a little bit of them — but not enough to warrant the full package price. Check out this guide, and get some packing inspiration.
Vaseline ($4) is such a great multipurpose product that you can use to moisturize your lips and skin or remove your makeup. It can also act as a soothing balm for your skin if you hurt yourself. Go generic to save more bucks!
Bring some snacks with you when you're on the plane to tide you over before your next meal. This way, you won't feel tempted to buy the overpriced, not-so-fresh snacks when you're in the air.
Bring along the book you're trying to finish and another one as backup, in case you're stuck with a delay on the plane ride home, too.
Liquids are a no-no when going through airport security, but there aren't rules against bringing an empty water bottle. Throw one in your carry-on, and fill it up using a water fountain on the way to your gate. That's $4 in your pocket.
Transfer the chargers from your packed luggage to your carry-on so you can use them during a long flight delay.
Bring this portable charger ($13, originally $40) with you whenever you travel on planes.