https://media.giphy.com/media/L82hqpwymi73q/giphy.gif If you forget to tighten the cap on the bottle, then there might be little flakes of polish on the top of it. When that happens, your nail polish is as good as ruined.

https://media.giphy.com/media/sgs2osbrwUzAs/giphy.gif If you can't seem to spread the polish across your nails, then it's unusable. That means there's no sense in keeping it around.

https://media.giphy.com/media/x9Tte3kM2t5Sw/giphy.gif You don't need ten bottles of pink nail polish. You're never going to use it all. Get rid of the ones you don't like as much and keep the ones that you prefer. What color nail polish are you currently wearing?