The Fed-Ex and UPS drivers downtown here are very professional and run regular routes during normal business hours. I usually have stuff sent here (plus it is out of the rain, not left on the porch, etc).
I use the USPS mail for very little these days and have even started changing notice provisions in contracts to provide for hand delivery or overnight delivery only (or email notice, but not USPS). Though certified, return receipt requested may be a little better. It took over 28 days for a certified letter to get from across the street to me (and it was a legal notice of a confessed judgment required to be mailed by statute). We have also had checks stolen in the mail (seems tot be a nearby sorting facility). And then there is this: