[Frith]

I remember someone telling me but i can never remember if its coins that are a third of your gigas won and gp a third of your xp won or something like that? 

[Thornz]

Pretty sure gp is half of the base exp, without the added multipliers like tier 3 or membership.  I don't know this for a fact, though.  I think 2x and 3x on weekends DOES effect exp. Could someone clarify?

[Toast]

GP is half of the base exp. Like said above.
I believe coins are half the exp.