If you have a large bust and are given to wearing great suits, pay close attention to the cut of your jacket. Avoid double-breasted jackets, as they will just play up your bust even more; instead, opt for a single-breast cut and stay away from pockets around the breast area.
If need be, have the jacket altered to fit your body shape, particularly if you have a large bust and a slimmer midsection. Make sure the fabric and/or closures do not pull around the bust area. If they do, you may need to go up a size and then alter the jacket accordingly.