Tips from Andrew Martin.
My strategies are play to get the longest run possible, not to
finish the level.
Most often I won't even finish a level, luckily I
have a bunch of people that also play all the time or I can
pester so I don't run out of lives too often.
I don't use boosters until I've played the level a bunch of
times either so I know what the chances of getting a long run
The longer the runs go for, the more exponential your score
will be compared to if you have smaller runs.
A load of my scores seem way high but that's because I will
have gotten a run of 40+ cards, sometimes 50+
on some levels.
You just need a lot more patience as if you use one/both
jokers early on, you gotta hope you can still get the rest of
the cards out before you run out!