Best way to ship E-Bay items that weigh 5 ounces?

I also sell on EBay and my items are also small like 2-3ozs.I pay for my shipping charges online through paypal. This save me some money. You pay more when you take it to the post office. Unfortunately, there is no other way to mail them if they do not fit in a regular envelope. Maybe try wrapping the item in a small amount of bubble wrap and seeing if it may fit in the envelope. Other then that you would have to keep shipping the items the way that you are doing it now.