The idea I am about to share with you is not one that I have come up with, though I would love to be able to take the credit. When I saw this idea, I thought it was absolutely amazing and I knew that I had to share it:
A pill organizer!
You can put your lashes in the compartments by pair, or one strip per compartment. If you choose the second option, I recommend that you use tape or a maker to label which compartments go with each other. If you are going on a trip and don't feel like packing a bigger pill organizer you can always opt for an individual day or two sized pill organizer. This option is probably better for short trips or if you don't have tons of different lashes you rotate through.
I have seen organizers specifically meant to organize false lashes on the market, but I find these pill organizers to be a better option because they are in so many stores and really cheap (I bought mine for 98cents!).
How do you keep your falsies organized?