Hi Kirsten,
Before deciding on a shipping courier it might be best to compare prices among the services available in your area, this way you are able to get the lowest rate yet offer reliable shipping to your customers.
Most shipping companies will provide free shipping/packaging materials and some will even help you pack your orders :) In case both options are not available you will need to buy your own packaging materials, we have a number of packaging suppliers in SaleHoo that may have what you need, like -
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I think our guides should help you decide on which shipping company to use as well as how you can start shipping orders to your customer -
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Hope this helps :) Please let us know how you get on!