BEFORE you close everything up power up your ipad and make sure all the buttons and functions work properly, charging, rotation, home button, sleep button
This is VERY IMPORTANT please be sure to put the screws EXACTLY how they were when you removed them otherwise your screen will not rotate when you put the new digitizer on. i closed my ipad thinking everything was ok but now the screen does not automatically rotate, but lucky i jailbroke my ipad first and have an activator gesture to rotate for me :-)
Well if you want to save some time and your screen is shattered just pry up one corner either left or right side at the top and tear the whole screen off going down towards the home button but do not completely remove the screen there is a wire connecting the digitizer to the board inside but tearing off the screen will skip you down to step 29 :-) i seen this in a video and saved me about an hour after the fact because my screen was cracking as i was inserting the blue picks so i ripped the whole screen off and used some adhesive remover to get off all the extra goo leftover