So, each non-FC house can have 3 other people living there, that's nice. Many of us have more than three friends.

I propose that if you click on the aetheryte crystals in the housing areas (Goblet, Mists, Lavender Beds) it will have a selection in addition to all of the various aetherytes in zone called 'Friends'. On this sub list will be the location of all of your friends in that housing area (have to be in the Goblet to travel to a Goblet house) so you can quick teleport to it.

It's not as convenient as being one of the three tenants, but it provides an easier way for us to visit our friends without making it a whole to-do like it currently is.