I would love a local chat shortcut to visit people's home streets - something like /usernamehere, maybe? (I often nearly type this to visit somebody, because it seems so logical, actually!)
I do almost all of my navigating via the local chat commands, and the methods to visit people's home streets don't really integrate well with my frequent /house /home /leave-ing and involve a lot more clicking or opening things up from my profile outside of the game.