Image Courtesy Ashley Edwards
"These will do your waistline and core wonders!" Ashely said.
Ashley's Guide to Bicycle Crunches:
Start by lying on your back with your hands interlaced behind your head.
Use your core to lift your shoulders off the floor and bring your opposite knee to the opposite elbow. Then, switch!
Start with 3 sets of 12 reps every other day to give your core a nice burn.