I have a three step program for working through a plateau ...(lol)
1. I stay away from the scale for a solid week
2. During that week I eat healthier than I've ever eaten before! Veggies veggies veggies.
3. I do new workouts. This one is key. If I've been doing a month of zumba and pushups then I switch to swimming and weights...
After all that I usually find that I've gotten past it!