Annoying Necklace Problems

For the longest time, I would only wear Wedding Jewelry such as my wedding ring and nothing else. No earrings (didn’t get my ears pierced until the summer of 2008 when I was 28 years old), necklace or anything but my wedding ring. However, the past few years that has changed. I still don’t have a large collection of jewelry but I am wearing earrings, necklaces and rings a lot more often. The only problem I am having is with necklaces. Many of the clasps end up moving throughout the day from the back of my neck to the front. And it annoys the hell out of me! Does anyone out there have a solution for this problem?