Basic Juggling Drills

Alright, I'm not a great juggler, but what I do know I train at constantly.
I was hoping to get some insight from other, better jugglers on some of their drills, and hopefully we'll be able to share drills and practice methods from around the globe

1) Easy numbers
Usually what I start off at. This is the basis of every other drill out there, and a good way to practice fundimental techniques. Just do a regular cascade for 50/100/500 throws (or what ever number you set for your self.), then do the same number in reverse cascade. When you get new tricks you can then do the same thing with them.
This drill helps you to stabalize your throws.

2) Counting up
This one is a bit tedious at times, but helps you practice starting from both sides.
Start off with 1 throw, then stop. Then with the balls in the same hands as when you stoped, do 2 throws. Then do 3 etc...untill you get to what ever number you place for your self (I find anything above 25 will drive you insane). To start do this with both reverse and regular cascade and then more tricks as you learn them.

3) Marked switches
Find some way to mark all 3 of your balls differently, or just use 3 different colors/types of balls/props. I usually start in a regular cascade using a red, yellow and black ball. I decide the red ball will always be thrown in a regular cascade. Then after a few throws I place another rule on, such as, the black ball will be thrown in reverse cascade from the right hand only. Then add on something like the yellow ball will be thrown in reverse cascade from the left hand only. Then the black ball will be thrown in reverse cascade from both hands etc... This is a good way to keep focused on what you are going to do next, and will help you out in future transitions. Once you get a pattern going it's easy to do, but switching patterns is essential for a smooth performance
This is the most versatile drill because you can add on what ever limitations you want as to how each ball is to be thrown (under the leg, behind the back etc...) and you can really work in all your tricks into it.

Any other drills people have will be much appreciated!

For beginners who are learning three balls; when the pattern gets raggy, go back to 2 balls- focus on perfecting the throws and timing, then go back to three.

For those working on advanced moves like 'mills mess' or 'rubensteins revenge'; after getting the basic pattern over several weeks, I think it's good to do a few extended sessions using purely that pattern.
I find if I force myself to push it to the point where my arms are really tired, it seems to lock the pattern into some kind of solid groove and sharpens it up when it's used as part of future routines.