Skype's the limit: those pennies you save on long-distance calls can add up quickly.

I'm thinking of a number between thirty and a hundred. Can you guess what it is? Need a clue?

It's the number of dollars my business line costs me every month. Anybody care to hazard a guess? Darn. I was hoping someone could tell me, because I have no idea. I dragged in a second phone line into my home a decade ago to handle all my business calls, and I've been paying for it ever since.

Looking back over my papers, I can see that the number was never less than $38 a month including and taxes. On months with lots of long-distance calls, that number can almost