How to finish an Alder body?

[streetxracer815]

So I have my Alder body and I would like to put a Satin Finish on it.
Are there any preparations or special things I should be doing before and/or after?

If so, can you give a step-by-step guide?

 

[jackthehack]

Look through all the DIY posts and you'll find everything you need. Don't post the same request simultaneously to more than one category.