(2): I think at this point, you should say: "There are a few things"
(3): for (provide s/t for s/o; provide s/o with s/t).
(4): I don't understand this point of yours. Did you mean "Announce s/o the change of address"?
(5): this is "mobile". Right? Also, I don't really understand what you meant to say.
(6): household (stick together, don't put them apart)
Hope it helps!
Student or Learner