For me i only have two toons.. took me like 4 years just to get another one up but also thanks to RAF from 40-80 straight.. but leveling up now also isn't that long anymore.. i did 1-40 in like a week with slow leveling. so 1-85 should like take 2-3 weeks? depending on how much you play.. Just spend some time on your main do all the dailies and all raids then just hop on to your alt and start leveling. for professions its gonna be expensive if you dont level as you level up.

http://tarouwowguides.com/
but if you want a quick but expensive way to level up prof.. go to this guy he has good guides on where to farm and level up techniques.