L.R.
Another tip to add to those below: Mail only from the nearest sorting facility rather than a local post office. We are also in N.Va. like you, and if we have something important to send (tax papers, packages) we go to the Merrifield P.O. because it's not only a post office with counter service, it's the main sorting facility for the whole region so what goes out of there goes almost immediately. There must be a sorting office closer to you in Chantilly. If you send at a local P.O., that local P.O. has to send it to a sorting office as the next step, so if you mail directly at a sorting office you cut out one step in their process. That might help. We have always had excellent service with things mailed at Merrifield getting where they need to go, and quickly. And yes, DO complain to the postmaster at the office you're now using. Make a written list of every problem with dates if you have them. Keep all receipts if you do anything that produces a receipt and show them to the postmaster if you go in to say, "This never arrived." They can't make lost mail reappear but if you don't complain they'll never know if there's a problem.