Mail is just one method of shipping. There are several parcel and express companies that provide shipping service. United Parcel is probably the biggest in the US. Other companies specialize in extra fast or extra secure services.
Also, with US mail, for security reasons, you can not mail anything that weighs a pound or more from a mail box . You have to mail parcels at a post office window.
mailman, email, mailbox, mailer, mailing
To send a package through the mailbox, you need to package the item securely, address it correctly, affix the appropriate postage, and then drop it in a mailbox or take it to a post office for mailing. Make sure to follow any specific guidelines provided by the postal service for mailing packages.
About 3-5 days depending on wether its going to a PO box or a regular house mailbox, its about the same as mailing stuff in the lower 48.
Some of the top mailing companies in the world are Fedex, DHL, and Ups. These companies offer an array of mailing and shipping options throughout the world.
The most important things that shipping supplies can do for you is save you money through bulk orders verses getting one here or there when you need them. Also, you can order quantity by needs. Then there is the conveniance of packing and mailing everything at the same time as needed.
Shipping cartons are available at local post offices, or at mailbox places. Stores such as the UPS store would have shipping cartons for sale, as well as office supply stores such as Staples.
You can try online retail sites such as Amazon and eBay. These websites also sell shipping tubes: http://www.officemax.com/office-supplies/shipping-mailing-supplies/mailers-tubes, http://www.officedepot.com/a/browse/mailing-tubes/N=5+530025/ and http://mailingtubesonline.com/.
A mailing box can be purchased at many office supply stores and shipping agencies, as well as online. Office supply stores such as Office Depot and Office Max carry generic shipping boxes, while a UPS store or USPS location will carry prepaid boxes and shipping labels.
Mailing equipment is used in speeding up the mail process. Mailing equipment may be used to buy postage virtually or to help cut shipping costs. This all aids the postal service.
If you need avery mailing labels, you should try ordering from Walmart.com. The last time I ordered the avery mailing labels, it came with a coupon and free shipping.
Typically, so long as your item is packaged appropriately, and it carries the correct amount of postage stamps, it should be fine as long as it fits in the mail slot. To be on the safe side, I would suggest simply visiting the local post office to mail it. You can guarantee safer shipping by mailing directly from the office.
If done from within the United States, it would be international shipping.