Im starting an Etsy store and would like to know what is the fastest and cheapest way to ship?

• cheapest business phone service
• cheapest cable service
• reliable affordable web hosting

Its between United States postal service, UPS, and FedEx. I dont want my customers paying alot for shipping. So if anyone has already made an etsy and found an awesome way to ship throughout the United states your tips and advice would be very much appreciated!Im looking through all the options right now, just need some more advice.

Im starting an Etsy store and would like to know what is the fastest and cheapest way to ship?