Ziploc bags have to be the most useful item you can pack. Want to keep things dry while at the pool? Put it in a Ziploc. Want to keep dirty clothes separate from clean ones? Put them in a Ziploc. Have a bunch of small baubles that you’re packing and would like to keep together? Or maybe you want to snag a snack for later from the buffet? Put it all in a Ziploc. Always pack a few baggies with you on your trip and you’ll be sure to find a use for them.