PolySmooth
Works just like the meshsmooth script - except this on will turn on the meshsmooth option on a EditablePoly - so that you can work and simply toggle the smoothing off'n'on whenever you like. It will set it's default Itterations to view:1 and render:2. But when you change these - it will respect the changes - and keep your custom settings - it also will toggle a whole range of PolyObjects - even when they have modifiers on top! I have it assigned to the ( ' ) key - saves a lot of time when previewing your smooth moddel - toggle away :)