Living on a boat

[Punkstig]

So, I've decided that this year I'm going to move on to a boat, I have several friends, including families that do this quite comfortably.
Anybody had any experiences, what are your thoughts?
It is in part financial why I'm doing this, it can be more expensive than people think to live on a boat, but it's a dam sight cheaper than continuing to rent something I'll never own in this area!