First I would like to disclose I am not tech savvy. So if there is something out there better don't torch me too much 
(This is only useful if you make phone calls to the US perhaps.)
I have gone without a phone for about a year. I just don't like them. Two minutes into a conversation and I am trying to think of an excuse to hang up. I prefer to communicate by text message, video chat or email. Alas, I had to get one last month for work purposes. I bought a Magic Jack at Radio Shack for $45 that advertised free local/long distance/international calling with voice mail. $20/year after that. It hooks up to your computer/laptop that hooks up to a land line phone ($7 at Wal Mart). You choose what ever US area code you want so it would be a local call from anyone who wishes to call you in that area. If you are living in Japan and your mother, who refuses to buy a computer and use Skype, wants to call you on her cell phone or land line, it is a free call. What ever country you travel to, if you can get an Internet connection, it can be used to make free phone calls.
I hate to sound line an info-mercial but it was something I desperately needed when I lived in Japan before. So if it is of use to anyone else...
http://www.magicjack.com

(This is only useful if you make phone calls to the US perhaps.)
I have gone without a phone for about a year. I just don't like them. Two minutes into a conversation and I am trying to think of an excuse to hang up. I prefer to communicate by text message, video chat or email. Alas, I had to get one last month for work purposes. I bought a Magic Jack at Radio Shack for $45 that advertised free local/long distance/international calling with voice mail. $20/year after that. It hooks up to your computer/laptop that hooks up to a land line phone ($7 at Wal Mart). You choose what ever US area code you want so it would be a local call from anyone who wishes to call you in that area. If you are living in Japan and your mother, who refuses to buy a computer and use Skype, wants to call you on her cell phone or land line, it is a free call. What ever country you travel to, if you can get an Internet connection, it can be used to make free phone calls.
I hate to sound line an info-mercial but it was something I desperately needed when I lived in Japan before. So if it is of use to anyone else...
http://www.magicjack.com
