Quote from critterlover
agree with above.
also consider things like food -- we have had some families order pizza for the unit, or give a fruit/gift basket. home baked cookies are also a nice thank-you.
nice thoughts, but i wouldn't recommend the home-baked cookies. because, i've seen some homes that are - well, the cleanliness, (or lack of it) is noticeable and i wouldn't eat anything prepared in some of those places.
the fruit/gift basket, pizza, or special written thank you notes, or gift to the unit are great ideas.