Are you running on 1 monitor?

2 accounts running on 2 monitors is a bit more manageable but if you are running 2 overlapping windows it makes things difficult. If you have a single screen in decent resolution you can look at splitting the screen horizontally so 1 session is at the top and the other at the bottom. And if you turn auto focus on mouse over on in your O/S it also helps.

Nothing is quick and easy when it comes to the mouse though.