Review (5/5): They're great for hand sanitizer
The last time I visited Costco, I bought a jug of hand sanitizer. But it was useless in the jug. So I was delighted to find the Travel Bottles. I filled them all with hand sanitizer. I now one in the car, one by my keyboard, and one spare. And I gave the pink one to a friend.
They don't leak and they work great for the reason I bought them.
They're a great idea!