The list of what was tax free was very very specific.
Small to medium sized coolers.
Mid-sized gennies.
Batteries, ???but not 9v??? or was that not AAAs -- I think it was NOT AAA -- Which I use in my LED head lamps.
I'd suggest getting Chilli for some of your staples.
Also, hit up the resturants for the mayo packets -- 2 or 3 per can of tuna! Yum! Costco sells them for ~$9 / 200 .
My mid-summer gift for friend and family will be a 50 pakets of mayo, a LED head-lamp, and an eye dropper for bleach.