I usually let it get about an inch, inch and a half and think to myself "I'll ash after the next puff." Then the ash thinks to itself "F*cK this, I'm gonna dump all over this guy right
before his next puff, He'll never know what hit him!"
And so, the constant stuggle between man and ash rages on. Sometimes the sun smile upon me and Man becomes the victor, while other fights are lost to the burnt cinder and it's ongoing battle cry of "You can tell your washing machine to kiss my ASH!"