You want to prolong the shelf life of your laptop battery  and your fancy red wines , and when it comes to nail polish, you can do the same thing. Now that I've already shared with you some easy ways to keep your polish around a little longer , I've got some tips for declumping, just in case your polish has lost some of its former luster.
The best ways to declump:
- First try turning the bottle upside down to help distribute color that may have settled on the bottom. Gently roll between your palms to mix. This also warms the polish, which can help with spreadability.
- If that doesn't work, try nail polish thinner. Just add a few drops of OPI Thinner  ($8.50) or Nail Tek Slovent Renewer  ($5.50) and shake gently.
To see the rest of my tips, .
- If you don't have thinner try adding a few drops of acetone nail polish remover. Only do this if you are planning on tossing the bottle soon, as the high water content and ingredients in remover can cause the polish to separate in the bottle, affecting the wearability of the polish.
- Face the reality that all nail polish will clump eventually. One thing to keep in the back of your mind: Dark shades tend to become thicker faster because they are more heavily pigmented.