Are Expensive Travel Bottles Worth It, or Is a Multipack Fine?
The set is cheap and the single is not, and you cannot tell what the difference buys. The five things price can pay for, and the one test that answers it for you.
Pump, Flip Cap or Disc Top: Which Closure Survives a Suitcase
The lid is what fails, not the bottle. What each closure type is actually built to do, which ones have a moving part under pressure, and how to test yours at home.