I think it is entirely dependent on where you are with your business. For the first couple of years I worked seven days a week. Now I make sure to take time off. It is the only way to keep some semblance of a personal life and your sanity. The companies who call and will not leave a message are the same ones whose bonuses aren't worth answering the phone for anyway. On the other hand, if it is a scheduler whose number I have saved, who I know is calling me rather than making their way down a list, and who is guaranteed to be offering something worth my while, I will pick up the phone.
Equal rights for others does not mean fewer rights for you. It's not pie.
"I prefer someone who burns the flag and then wraps themselves up in the Constitution over someone who burns the Constitution and then wraps themselves up in the flag." -Molly Ivins
Never try to teach a pig to sing. It's a waste of your time and it really annoys the pig.