Here is a trend I'm seeing lately. Instead of lining your muffin tins with cupcake liners, cut squares of parchment paper and place in the muffin tins. Then add your muffin or cupcake batter and bake as usual. If your parchment paper wants to pop out of the tins, just give a very quick spritz with cooking spray.
The parchment paper gives an elegant fresh look to muffins and cupcakes.