Dry girls have it easy when it comes to oil. They don't have any! Blotting papers are designed for the oily among us. You know, those with natural sebum pumping out at rapid speed. Grease makes makeup looks terrible, after a few hours, so it's always smart to have a few on hand on your bag. But what happens if you forget to bring them, and you're stuck in public with a shiny face?
Oddly enough, the average toilet seat cover in a public bathroom is basically made of the same type of paper. It easily absorbs oil, and it's a huge free sheet. Go on, try it!