Ugh. I think I had one of them once and gave it away not long after it bloomed. My Cinnamon zeylanicum has an unpleasant odor when it blooms so I quickly learned to remove the flower buds. With orchids, though, the blooms are usually the entire point!
Fortunately, I have other plants with nicely fragrant flowers. One of my favorite plants for fragrance is Jasmine sambac 'Maid of Orleans' which is always in bloom and smells wonderful. It is really, really easy to grow and can be kept small (I grow it in a six inch pot). I am always surprised everyone doesn't have one in their plant collection.