What do you guys tip for ports?

[Hasbinbad]

Do I "want" to go somewhere?
-ask a guildie or walk

Does my guild need me?
-ask a guildie or walk

Does my guild NEED me?
-do /who all druid/wizard 40 50, offer 200p to each for first-come-first-payed drop-what-you're-doing V.I.P. transport

Am I near a ring/spire with a porter nearby?
-ask nicely for port, if not asked for "donation" (fee), give 30-50 on arrival depending on my stack

EDIT: also, thank all of you badass druids and wizards for the countless free CR ports you all have given me over the months!!