I think the best way to get stuff to them TODAY is find a searcher or a errand runner in Orlando and send them funds via paypal by a certain time and then they can go to the grocery store/Walmart and pick stuff up and drop it off at the command center.
Staples has most of that stuff on the list below and will deliver free on orders over 50 dollars, but it will take a day or two to get there.
http://gardengrocer.com/order.php
zip code 32822
You can place an order this morning and they will deliver it tomorrow morning. The prices are pretty reasonable. They have wholesale (giant packs) snacks, water, soda, baby wipes, paper plates, etc...they also sell ice coolers that you toss for six bucks. It's 40 bucks min. and 12 bucks for delivery though.
HAND SANITIZER
BABY WIPES
BUG SPRAY
PLAIN WHITE PAPER FOR THEIR COPY MACHINE (1 OR 2 PACKAGES)
PAPER TOWELS
PAPER PLATES
NAPKINS
UTENSILS
SNACKS
FOOD
GARBAGE BAGS
THE COOLERS (5)
COKE / PEPSI ETC.
are some of the things they need according to a contact at SM.
They also need people to help in the command center and run errands. So if you are in the area and can't search for whatever reason but still want to help go on down!