I can see through usps informed delivery service what’s coming, and ask my worker to open any letter that seems urgent to me.

I had a small connection with an adjacent property owner (a small grocery store), and knew that he needed to expand his parking lot for his delivery trucks.  

They may require you to relocate the boxes, and some locales now require the pedestal mounted "gang" type units, which have detailed requirements for the pad on which they are mounted.If your current boxes are in poor condition, unsecure, or are difficult to access safely, they can stop delivery to the building.

Roofer, carpenter, floor guy, drywall guy, tree guy, grader, plumber, electrician, RE agent, painter, insurance agent, accountant, banker, hvac guy, lumber/window guy, vinyl siding guy, gutter guy, appliance repair guy, RE attorney, junk hauling guy, pressure wash guy, dirt / gravel delivery guy. 

We pay $1.29/sf plus tax & delivery to an independant supplier in SoCal, and it doesn't need underlayment. 

This markup has a purpose - it is essentially payment for the time it takes the contractor to order materials, negotiate prices, schedule deliveries, walk around the box store looking for materials, etc.

They then give this list to HUD every 90 or 120 days.http://about.usps.com/publications/pub32/pub32_ter...vacant delivery point:  A delivery point that was active in the past but is currently not occupied (generally not occupied for 90 days or more) and not receiving mail delivery.

If you are planning on doing this again (and again and again.....) try and work a relationship that will get you the best price and the best delivery options if you stick with one dumpster vendor.

I pay $125 for delivery and $90 a ton.

Around here , for a dumpster you pay for the delivery , the dump and the weight .