Piping bags!  I love the way they help frost cakes, cookies, and cupcakes but they are a pain to fill.  Until I learned something new on The Chew www.thechew.com.  It wasn't even a segment devoted to piping bags.  I just happened to notice the technique while they were making Shepard's Pie.  It is so simple, I can't believe I never thought to do it. Are you ready???  Before filling your bag, prop it upside down in a jar or glass!  That is it!  Ta-da!!!