Carry-on bags - what you absolutely need to take

Your agent has booked your flights, hotel and car and your suitcase is packed.
So you think you are ready to go? What about your carry-on bag? 

Must have

Presription medicines and any medical supplies you use on a daily basis 
Phone charger
Travel information - such as confirmations or vouchers you will need on your trip.
All valuables - electronics and jewelry


Basics

Change of clothing
Liquids and gels in 3.4 oz sizes - must fit in a quart size plastic bag 
Makeup - any non liquid items can be brought in any size.
Safety razors, electric razors, tweezers
A book or magazine for the flight
A sweater  - if you get cold on planes

Just remember your carry-on has to fit under the seat in front of you or in the overhead bin.
You are allowed one item in the overhead  bin. If your carry on does not fit either of these two
places, the crew will check your bag and it will become checked luggage!

Unfortunately I need to say this as well; when your carry-on goes through security make sure you check it before you leave the area to make sure you have everything.