Is it easy to get your mail forwarded?

I’m moving to my girlfriend’s family’s house, also in Taipei, soon and I need to forward my mail to their house. Is it fairly easy? Does it cost anything?

It’s very easy. Just go to your local post office and fill out a form. You may have to produce documents showing your name, the old and new addresses. They’ll forward your mail to the new address for a couple of months free of charge.