I use questie. Trying to remember where things are can reduce to tedium which back in the day meant googling for maps and co-ordinates. The sense of achievement in grouping to take down an elite isn't spoilt for me by having a dot on the map telling me where it is.
Current problem I am having is levelling with my wife where I am druid and she is playing warrior, she expects me to heal her. That works in recent retail expansions, but here my kit is agility. If I drop out of cat form and do a couple of heals, I don't have enough mana left to go back to cat form so I'm left thumping things with a stick until we die