Kylie,
A little tip would be to include a frequently asked questions page on your site, the amount of emails I received asking questions massively decreased after I added this to my site. If someone does ask a question that I have already answered on my site, I can then also then just send them an email politely directing them to the page, it saves a lot of time answering the same questions over and over. You can state your payment options in detail, explain about postage, delivery times, packaging, privacy, anything that may concern a buyer before placing an order. It helps to place their mind at rest if they can see the answers to all of their questions before they place an order. I also state clearly what I will and won’t do, and I no longer get emails asking for webcam, phone sex, private meetings and videos of me eating my own poo!!! I kid you not…!
Congrats on your first order too, you never forget your first! 😉