Memorize is the best thing going. 'Memorize All' includes everything in the window + lights, cameras, etc. I use it most when using poses. Default, Pose, revert to default pose, Pose again. All day long :-) About lights... I've got just about every light set made. Years ago, Lady Veth posted her light setup. 3 lights - Black, Grey, White. It's the truest light set up i've ever used. I've used it for 3 years now. Not even Global Illumination is as clean as her set.