Since most of the popular sites do not accept bitcoins, name me some sites (mostly clothes, digital goods, jewelry, video games and all that sort of shit) something useful, that accept bitcoins and can be easily processed through payment.
So for gaming other than steam i use
www.g2a.com you can buy all digital gaming stuff from there with bitcoin and its a little discounted too. For anything else like
www.purse.io is good you can buy anything off amazon with bitcoin from it. If you do a little google search you would find a many more websites, these are just some that i use.
With purse he can buy everything and with nice discount, only important things is to find free shipment and to see does he need to pay customs when something is entering in his country.
He also have openbazzar, people are using that service also, maybe that is the new ebay or amazon, we will see. I think online shopping with bitcoins is in rise, now we have more choices then year ago, if everything be ok, next year we will have even more places where we can spend bitcoins, and earn it. I believe people who work for this sites will be paid in bitcoins or some other alt coins. That is good for bitcoins.