Enchanting and alchemy here.
None of these are flashy (nor do i make much money with them even if i could/should), but i really like them for my day to day convenience, considering that most profs are mostly equal in terms of dps purposes anyway and that i don't want to respec profs every new patch (enchanter since start of vanilla !)
Enchanting : no problems enchanting whatever gear i get on the spot, abundance of crystals due to disenchanting the items i replace, some money through reselling the DE mats i get when farming a little (keeping a healthy stock for my own needs), and making sure that each instance run i do has a chance of being proffitable by making sure that there's a DE and that we'll be able to share shards at the end.
Alchemy : 2h flasks ! And now epic gem transmutes.