It's more than Id like to pay too!

I only use it when I dont have a way to Skype. I used to do the local sim card juggle, but it was usually around 50 euro cents per minute on top of the ~$30 sim card and then I had to worry about the acct expiring, remembering the phone numbers, changing the sim, etc.

My situation is a bit odd, I guess. I might be in any of a number of countries every other month for 3 months and then not back for a year.

What are some cheaper alternatives without multiple sim cards?
Note: my calls a variable country x to country y .... neither x nor y are fixed ... so I think a callback service wouldnt work for me.