I've heard a number of nostrums touted for helping keep your voice in good condition - the most obvious and universally recognized are avoiding smoking and drinking plenty of fluids. There are quite a few other remedies for problems and tonics to keep your voice in form that are also available. Most are likely useless snake oil, but some I'm sure do help. I've read a number of testimonials to the use of Throat Coat herbal tea, for example. What have you tried that really helps?