I keep track with paper and pencil
I started a list with all the sums and as they came in I scratched it off and listed it at the bottom.
When 14comes in, it goes to the bottom, now let's say 24 came in before 14, it still goes to the bottom,
I also track root sums the same way, with due pairs, you can trap a number
Example if pair 36 is at the top of my list, sum 19 root sum 1
I would play 3619-3682, any sum 19 with 36 in the equation.
I like paper because it's easier then toggling back and forth on a computor and you can spred things out in front of you.