How to save you old nail polish

Hey guys ! So my friend was doing my nails a few weeks ago, as she was applying some nail polish to my nail she realized it was old . So , she put a little bit of nail polish remover in it ! Crazy right ! As she applied it to my nail it was as good as new !! I just did this the other day while I was painting my nails and is totally works . Just add a little bit of nail polish remover and you have save a whole bottle of nail polish ! This my lighten the color just a little but . -Ashley