Don't call me, I'll call you.
I've been trying to get away from this person who keeps on calling me from different cellular numbers, trying to get me to answer the phone. So, I've had to resort to basically not taking calls unless I recognize the caller. This has begun to really, really be a pain!
I recently found out about reverse cell phone lookup which is perfect for this situation! All I have to do is punch the number in and voila! The caller details show right up, so I know if I should take the call or not.
This was very handy and I highly recommend it. A friend of mine started using it, since she's so paranoid about being trapped in long phone conversations. I told her she just needs to learn how to get off the phone instead of being strung along by whoever is on the other end.
She tried it out and loved it right away, so there's another believer. Don't stay in the dark, find out who is on the other end of the phone before picking up.