Obviously your items need a title so the user knows what they're looking at. There are a few rules I like to follow for strong, distinct titles:
- Keep them fairly short (around four words max) or people will never remember it.
- Make them unique—really generic titles are going to make it hard for the user to find it again ('classic t-shirt' in a site with 100s of t-shirts for example), instead add a bit of personality with a name you are unlikely to find repeated elsewhere.
- If they're going to be very different, like the funky sounding IKEA product names, then add the product type next to it, e.g. 'Ektorp | Armchair’.
- Don't cram the titles with SEO information or product details, as much as marketing folk might want you to. Things like size and colour should be found in their relevant place on the page for comparison, and shouldn’t need to be hunted for within the title.