I like playing 14.1 by racking and taking the head ball for my first breakout ball. Also a few years ago I was taught "Bowliards" which is racking up 10 balls and playing with a bowling score sheet. runnout is a strike, one miss and it's a spare. This helps put a little pressure on when I'm alone, because after a strike I want the next runnout that much more.
Because of this I use the bowling score sheet format for a lot of practice drills that I do. Just do whatever shot or drill 10 times per "frame".
Recently since I have a few friends that are practicing more. This also allows us to keep a score and brag about it the next day, and actually know what the other is talking about