Best season for shipping companies

As everybody knows the one of the best season to make profit and spend money is here, "Christmas time"; and the companies who
can take advantage of that are in charge to ship packages as UPS, Unites States Post Office, FedEx, etc... Employees make some extra money working long hours during the day and at night time trying to everybody gets their stuff on time, specially in holiday. Post offices are selling customize stamps with the picture of your kids, dog, cat for some extra cents; also is promoting sales of Eco-friendly boxes instead to reuse old boxes at home to send presents, off course this as a extra cost but the box at home is free.
People like me as an immigrant with part of my family away, we get crazy in this season and we want to send the entire house in a box for our family no matter the cost, spending money.