things NO GIRLS should forget when traveling. (PLEASE HELP) thanks?

so im going to hawaii with a couple of friends in a bit to celebrate my 15thn birthday. Its coming up very soon and i know im going to forget somthing and regret it later. what are some things that are essential to making my vacation fun and less stressful. personal experiences appriciated.
thankyou
any thing i would need on the plain ?

tampons

a pair a tennis shoes...just because you are going to the sand and beaches, trust me you dont want to leave these behind.

Sun tan lotiond and aloe vers gel also a nige longsleeve t shirt cuz i garuntee ur burn lol and u wont want to be in a tank in the frying sun so u are doule buring lol

Things that you usually forget are hair brushes, make up brushes, sunscreen. Also things like cotton balls and cotton buds. Might sound silly but take some plastic bags for dirty washing. I take flannels with me when I go away. Hotels usually give one flannel per person and I find one is never enough. Good luck and enjoy your holiday.

packing list of things ppl always forget:

1. tampons (when you are on vaca and get surprised you will be thankful)

2. more then one swimsuit( most ppl already know this... but some ppl don't think about it and want to go swimming twice in one day and their bathing suit is wet)

3. magazines and/or books for by the pool

4. SUNSCREEN no matter how tan you are or if you dont burn- WEAR IT! if you don't you'll regret it later in life

5. a cute cover up

6. sweat shirts and colder clothes in case you have a chilly day or chilly nights

7. a hot bod to attract the hot boys on the beach

8. razors and WATERPROOF makeup

tampons, sunscreen, tampons, bikini, tampons, beach towels, tampons...and tampons.

sandals
toothbrush (I always forget mine)
clothes
ipod/gameboy
magazines
books
hairbrush
comb
hair products

Thats all I can think of for now, but the 1st person summed it up nicely.

Razor, shaving cream, tampons, toothbrush, anything you wanna take for your hair.

That's what I normally seem to forget and then remember at the last minute.

OK, I've been on my fair share of warm weather vacations...
* Tampons (because bodies can be unpredicatable)
* A super cute bikini...or 2
* Suntan lotion
* Aloe vera gel
* A book
* Hair conditioner (the sea and resort water can wreck havoc on your hair)
* Chapstick
* Razors!
* A cute sweater (evenings in Hawaii can get cool)
* Clear mascara
* Comfortable shoes...even if they're flipflops make sure you can actually walk a bit in them