You've only been open about ten or eleven days now, I would be a bit more patient. It's hard to be found at first! Most users don't make any sales their first month, so don't feel like you're failing!
I wouldn't even worry about having a sale/discount this early on. Just focus on getting your shop out there. Work on SEO, tag, titles, social networking. Etsy has a lot of great articles on all of those. Focus on getting your shop seen before you start discounting your prices. It might look like you're clearing out your shop to close because you have so few items (and now they're on sale?)
Did that make any sense? I think adding items as you can and getting your shop out there are the best things to work on. Do sales/discounts or hand out coupon codes to great customers who gave you big orders or when you make 50 sales or it's a holiday :)