Want to get in shape before your wedding day? TheKnot.com visits celebrity trainer Jeanette Jenkins at a Crunch gym in New York City to find out the best bridal fitness tips and techniques. These simple exercises will have you on your way to an hourglass figure in no time and can be done right in the comfort of your own home. Work your stomach with roll ups and ab extensions, and focus on obliques with the bicycle crunch. Performing three sets of each exercise will ensure you get top results and look fabulous in your wedding dress.