Returning player asking about useful items/toys/other.

So I started playing with my brother after a break since a little after cataclysm and I would like to know if you have any tips on quests with particularly useful things. Examples are the Dalaran hearthstone toy (any travel aids are highly appreciated) or parasol toys that make me die to fall damage slightly less often. What are some other quality of life or really useful items that I might not find playing through only the latest content?