United Parcel Service is a very well-known company which is providing quality service to its customers. It is one of the most effective ways to ensure that your parcel is delivered on time. You will be given the option to choose upsers your preferred delivery method, and you can also choose the type of envelope to be used to ship your order. There are many other services offered by this company as well, so if you don't have enough time to register with UPS, it might be a good idea for you to look into one of their other services.