Guide for banking on kos chars

[Cillaz]

I was thinking about putting together a little guide on tips/tricks for banking for hated races. Not just things like FD banking, or turning pp into gems to carry (though I will mention these) but what you can do to bank safely, where you can bank and also the easiest places/ways to gain faction to bank in certain places.
What I would like is if people could put there tips and tricks on here to help me compile the guide, as I think it's something that would help out a lot of people.
I will also test the info in game to confirm it works.
Some things I have heard but not tested (and would like some more solid info on to try) but will look into first off are :
May be able to use goblin bank in runnyeye
May be able to invis behind rivervale banker and then uninvis and bank safely behind him
May be able to bank in qeynos sewers
May be able to bank through wall in overthere
These are just to start, please confirm these if you know, or add some others so I can test and add.
Also any faction work and how easy/hard it was to be able to bank in certain places
Thanks!