Just a warning: I was putting my mail in the drive-thru box outside the Westwood post office and saw that several letters (bills) stuck to the slot. When I went to shuffle them in, I noticed that the slot had small wads of dark-colored sticky stuff strategically placed not only along the slot, but also inside right where the slot opens to the main box. So, if one did not notice their mail was stuck on the inside of the upper slot, one most likely would not check lower in the box. I say “strategically” because these appeared to be set in places reachable by hands (my hand reached into the bin so I could push my mail into the box). Anyway, I alerted the post office staff, but Westwood is probably not the only place where this has been done — so make sure your mail actually goes through all of the slot openings and into the box!