No caged jellies
The caged candies do not cover any jelly. So while you need to unblock a few of the cages to start working on the jellies, you should not waste moves trying to unblock all candies. That said, it helps to clear as many cages as you can, so if you see an opportunity....take it.
From the top
Clearing the cages at the top of the pyramid works best.
Use striped combos to take out as many jellies as possible in one move.
Don't forget that you can swap licorice with regular candies. Forgetting this has cost me countless easy matches.