I have a system that gives you 3 digits that tend to hit on the next two drawings. You can use this information to narrow down your playlist. I describe this pen and paper system on chapter 19 of my Kindle eBook which is extremely affordable at only $2.99:

http://www.amazon.com/dp/B00X7OWHXE

I have the 36 numbers for all key digits listed here: https://pick3master333.com/wheel/

Here is a free wheeling program you can use with this system: http://alturl.com/nx6hi