How do you store left over makeup samples like liquid bbcream or foundation?

When you get a sample from a makeup store and you use it, the pack is already opened. How do you store that?





Is it a good idea to secure the opening with bobby pins?


How do you take care of left over makeup samples?How do you store left over makeup samples like liquid bbcream or foundation?
I always have them put it into little bottles or containers and then when I use up the sample I keep them for the times when they won't have containers. Or I use empty mineral sample jars.





Yeah, it'd be good to try and keep air out as best as possible. But use it up quickly! don't like, use some today and the rest next month!

this works