Just managed to copy/paste this together out of the whole day.
Hrm! Basically- that's how I outline in a nutshell. I've been asked so many times and THIS is how I get such awesome lines! I can't think of anything else to add- everything is there xD
Hope it isn't confusing- or if I over-explained something
-I use only Paint Tool Sai, I make no modifications on a different art program.
-My Bamboo Tablet is medium sized, your basic tablet.
-I use Windows XP.
that's it XD; EDIT!
ALL MY DRAWINGS ARE SAVED AS A .PNG
</i> THAT HELPS IT MAKING EVERYTHING CLEAN!