I'm not talking about on hand sP, of course..but where do you keep the rest? The bank? Your shop till? Mine tends to be both the bank and shop till. Mostly because I keep forgetting to empty the shop till, but then at the same time, I suppose it's a good place to keep it because I can just get what I need from the bank..
So what do you do?
Pretty much the same as , I keep most of it in my vault unless I'm buying stuff.
I keep a little bit on hand for quests and things, but even after I finish those the majority of my earnings goes back into the vault.
I don't really keep anything in my shop till anymore, since I got the achievements for that. I empty my till as soon as I notice the alert about shop purchases.