I do it all! (Almost)
The only things i dont do is thieving, summoning, dungeoneering, herblore, farming, construction, hunter, slayer, prayer, crafting, fishing, agility, or hitpoints
~~Charging Fee's~~
Combat:
$0.40 per level (1-40)
$0.75 per level (41-60)
$1.00 per level (61-80)...