I don't charge for water, I don't get many random requests. I got friends who are pallys and guzzle the stuff like it's going out of fashion, give her 100 at a time so she lasts the hour.

I dont have the conjure food one, im not paying 75g for it when im trying to save for other things. My 70 druid friend who does alot of outland instances will get it for me if it drops for her.

I charge for random portals :-)
Meaning 1g to normal cities and 5g to shat. I get alot of "wtf 5g?" thrown at me, usually from low lvls getting head of themselves. I say, well its a HIGH LEVEL area, and if you set ur hearth its a 1 time fee. No skin off my nose if they dont accept and pay, though.

I don't charge for ports if I've been grouping with them, or if theyre friends/guildies.

Yea, also. Mages DO rock :-)