What is a one-sentence summary of the following article?
As you continue to improve at painting your nails, you may have less errant nail polish to remove from your skin. Instead of applying a thin coat of petroleum jelly or white school glue, you may choose to clean up your nail polish lines after you’ve finished applying your polish and top coat. You can perfect your polish line with an old makeup brush and nail polish remover. This method requires a steady, practiced hand and patience. You may also use a clean cotton-bud dipped in nail polish remover.

Summary:
Wait to clean up your nail polish line.