I have wasted countless gallon ziplock bags when traveling - just unscrew the lids and put some plastic wrap over the opening then screw the lid back on for a much easier spill solution! (not quite as safe as a plastic bag, but a good idea!
This is a MUST-HAVE for trips with kids...All those little travel-sized bottles organized and in one place! First aid, meds, dental care, sunblock, sewing kit, hair care, etc... Fits flat in a suitcase, conveniently hangs on a towel bar, a breeze to clean, and the clear pockets make everything quick and easy to find...I keep mine stocked and ready to go year-round! The Container Store only $14.99!