I think we all have one- that is, a lesson in running our businesses that we have learned the hard way. My biggest lesson to date (I am sure there will be more) is that you can only work 12 hours a day 7 days a week for so long. While you feel productive at first simply because you are working so much, it really can be counter productive.
What I found to be the best alternative was to set my work schedule in advance and then step away from the computer (hard as that may be) once that time is up. I really do seem to get more done, and I even manage to squeeze in some time for fun, too.
Does anyone else have a valuable lesson they would like to share?
New Mexico Candle Co.