Owning your own home

Looking at the rate of return, surely the best thing to get to pay off one interest only mortgage is another interest only mortgage?

Using my dads place as an example, he paid £22,000 for a house now worth more than twice that, so he could have bought two, and sold one to pay both mortgages off.

Rent out the one you are not living in, and it covers itself.

This is why, for a while, Buy-to-let was so popular.