what method do you use to install beta to avoid conflict with other versions?

we know that we can specify separate program file directories and separate solidworks data directories

but what else do you do to keep multiple versions from mingling?

do you uninstall current versions and then install 2013 and then the older versions?

how to you stop 2013 from inheriting the paths from previous versions?

do you use a separate computer all together?

interested to see how other people handle this situation.

SolidworksSolidworks 2013 Beta