When planning your titles for your shop, think carefully of what words you put at the front of your title. The very first thing that someone will see on a search results page are those words. Do not start with your name or your shop name, anyone who types your name or your shop name will be arriving at your site anyway. Begin with the most relevant keywords to your item.
Once your titles are well-optimized do not reuse your titles on other websites. If you should list your same items in another shop, reword things so that you don’t have five pages with the same name. If you have many pages around the same keyword, think about variations or other words that may fit better, this should be more interesting to your readers, as well as to search engines.