Random Blender Tips

I pretty much just use this blog to remind myself of stuff... so here are a few blender things I learned and then forgot and then learned again.... 
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Focus on an object

Pretty much every other graphics package on the planet lets you zoom and center on a selected object by pressing the 'F' key.  In Blender its '.' on the numeric pad.  I actually like how Blender uses the numpad but I usually forget this one.

Multiple Materials on an object

Handy for things like windows in a spaceship, where you want a single mesh but with different materials.  It's not complex, but it's not obvious either. 
​Follow the link for satisfaction.   
​​https://blender.stackexchange.com/questions/516/add-different-materials-to-different-parts-of-a-mesh

Atmospheric Attenuation

Basic fog, but also a great introduction to the Compositor.  A big slice of Blender awesome that I've barely touched.