1. Gift cards (Amazon) - Because many wants to shop with Amazon but since they are not able to pay directly with bitcoin they are just converting or buying it with gift cards.
2. Clothes - For sure this is on the list of yours too because clothes are necessity and we are into the era where fashion is very important.
3. Gadgets/Hardware - Lastly, this is the final on my list since we are in bitcoin, other people will think to buy gadgets for their bitcoin business or farming with hardware.
There are many market places where you can utilize to take that advantage and sell whatever stuff without facing unnecessary practical problems at the same time making good money. Most probably, this forum's goods and digital goods sections must be a good example for that.