Packing liquids in Ziploc bags doesn’t always cut it. It might protect everything else you packed from getting soaked if your shampoo leaks, but it won’t fix another problem: you need whatever might spill.
To stop leakiness in the first place, rip off small pieces from plastic shopping bags (the thinner supermarket kind work better than those from the mall) and stick them on top of each bottle before screwing the cap back on.
Your clothes and your liquid necessities are safe!
[Photo: Flickr | taberandrew]