You should also block countries that you don't ship to. I think that you have to use the advanced form to do that. Once that is filled out, click on offer another service and then choose custom locations. The first international section would be for the US. When you are filling out your sell your item form the top shipping section would be Canada - domestic shipping

So rather than state that you ship 'worldwide' just check off the countries that you do ship to. You must show a shipping cost to those countries so that buyers are aware of the shipping cost before they make a purchase. Perhaps start out by shipping to the UK, Japan, Australia and maybe a few of the western European countries.

If you really want to sell overseas, you might want to limit the countries that you ship to at first and only ship outside of North America if the item under a certain amount.for example $100. (Note: for your items that are over that amount, you must use xpresspost to the US as Tracked packet does not have a signature option) One big problem is that not all countries have an option to get a signature when the package is delivered by a mail service and both Paypal and eBay require that an item over $850 must have a signature in order for the seller to be protected if an item not received claim is filed. I've been selling here for a long time and would still be uncomfortable selling some of your more expensive items overseas.

I really do recommend that you ship only to the US and Canada at first.especially for your expensive items. All of your listings show worldwide shipping although the listings I looked at did not show a price for shipping overseas.

My ebay listings not showing up