I suggest bringing fewer changes of clothes and several swim suits. You will live in shorts and tank tops. I think regular T-shirts are too hot here. But why not just pack two and buy a few while you ae here. You can rinse out your clothes and they will dry overnight. Instead of a blanet I suggest a couple of light weight twin sized sheets. I find it so warm here that I sleep on top of the sheet but you may get stuck in an air conditioned room then you might want a sheet over you. What about a wash cloth? Using credit cards gets expensive - why not travelers checks?
Skip the long pants, definitely pack ziplocs. I'd say skip the sheet unless you plan on sleeping outdoors on your own. Bring a small bottle of woolite for hand washing clothes and a length of rope and clothespins for hanging your laundry.
One of my good old buddies went to Hawaii every year with his good old mother. When Mom got too old to travel he asked me to fill in. Geo. is a big guy but he took everything he needed for a week in a canvas hand bag. Once you have everything packed - take out half of it!
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