UPS and FedEx guys rarely change (they must be *assigned* to fixed "routes" -- ditto for letter carrier). They don't even bother with the doorbell -- unless a signature is required (just leave the package(s) by the front door and expect us to stumble across them).
Remember, I care little about unwanted/unsolicited guests. If I inconvenience them... . The folks who *know* me and are coming to *see* me will expend the effort and be suitably "entertained". The guy walking door to door trying to sell landscaping services... can keep on walking! :>