I thought of an idea of a new housing item. The Guest Chair. You set it up and there would be a chance during certain parts of the day that a NPC in the game will drop in and hang out for awhile.

If someone shows up, there would be different percentages on who exactly shows up. You could even have who shows up based on certain achievements. Like if you finish up a class story arc, you could have someone from the arc show up (for example, if you finish the Arcanist story arc, K'lyhia might drop by for a visit). You can talk to them and they'll commit about how they've been and/or compliment you on the house. Percentages on who shows up when someone visits would be dependent on how likely it would be for said NPC would have the free time to visit. Could even have one of the GC leaders show up, but it would super rare. Somebody that has more time and/or are out and about (say, like, Rurukuta for example) would be more common.

Could be allowed so many depending on how big the house is (would have to have something programmed in to not have duplicates, of course).

Figure it would be a cool way to make your house seem more lively, and to catch up with some of the minor NPCs, or squee when someone more important show up.