If you accidentally disclose your password -- either through typing it into the address bar, or in any other way -- it's best to change it.
There's no need for any complicated checklist. Simply change that password, everywhere that you used that particular password. This will protect you.
Is it absolutely necessary to change your password if you typed it into the address bar? Perhaps not -- in practice, the risk is probably modest. Then again, why take a chance? If you type it into the address bar, it may be disclosed in cleartext over the network. For instance, if you are currently connected using open Wifi, anyone within range of the network who is eavesdropping could capture your password. Also, your password could potentially be captured in various logs. So, at that point, rather than taking a gamble, the safest thing to do is to immediately change your password. If you do that, you'll probably be fine.