I tend to just have the one, I do have other accounts but they are pretty much dormant.
Sometimes MSN can be tough when you have 8+ MSN’s on at the same time, which happens a lot! The old chat attack can get too much sometimes so you gotta deal with the questions as they come in and just let people know that you have others on and to hang with me while I sort through them.
All my MSN contacts are pretty much work related anyways.