Originally Posted by
Maiku
I have to agree with this man, sometimes when doing heroics I see people just rush through like it's a race and leave grey/white items on mobs even though they can be worth a good dime when selling it, I always see it as a repair-fund, before doing dungeons make sure your bags are as empty as possible and buy the biggest bags available or something just below that, for example 20 slot bags are 25-100g depending on the realm and 22+ slots are 200g+.
Bigger bags = more space for vendor-junk = more $$$ in the end.