Make free–but complicated–international calls
If you've got friends or family overseas, you know it can cost you a pretty penny to phone them. Even with many of the low cost services available, there are hefty mobile phone surcharges–often more expensive than the actual call itself. C'mon, in this day and age there's got to be some way to beat the system on that, right?
Jaxtr has a service available that lets you make free international calls. You give the service your number and the number of the phone you're calling, and the adventure begins. These folks send an SMS text message to your recipient, giving them a local number–local to them–to call in to. Once they do that, you're automagically connected to them. Since they initiated the call (to the local Jaxtr number) on their end, there's no mobile phone surcharge for you.
This free service is available to you on your landline or cell phone. You don't even have to sign-up, although if you do, there are additional options available to you.