We get bored doing the same thing over and over again and eventually resent the cash cow, feeling entrapped by it. Bad idea. It’s far easier to stoke your love affair with the cash cow than to find a new one. Unfortunately, by the time you sense the cash cow is starving, it is on its last legs and frequently can’t be nourished back to health.
— Tim Sanders, writing in his blog SandersSays, on the importance of creatives and other entrepreneurs putting their time, effort and money into the activity that pays the bills — rather than just those things we love to do.