I ship USPS First Class or Priority mail. I almost always add insurance for everyone's protection. Ready to ship items are shipped in a day or two, but my official ship times are 3 - 5 days, because sometimes life gets in the way.
I take Paypal or Etsy Direct payment. For custom orders on belly dance pieces, I don't usually require a deposit or payment up front before I start work, because I have never had a problem selling belts. If I do a custom piece and the buyer fails to pay or changes their mind, I'm sure I can sell the piece elsewhere.
I will also cancel the sale at the buyer's request, as long as I have not shipped the item already.
Returns & exchanges
If you are unhappy with your purchase, I will try to make you happy.