I ten table but have read about those that play more and they use a simmiliar technique but just play faster I think, stacking. If your screen allows you can have two seperate stacks (or if you're 24 tabling I'd guess you could have 4 stacks of 6). This gives you a kind of compromise between being able to keep track of some action while not having to look across 24 tables to find out where you're next due. I found this much easier than tiling the tables. I find it too distracting to have a mass of tables in front of me, but with one table at a time (because I only 10 table so can get away with one stack) there's no distractions at all.

If you're playing on a site that isn't reliable with table focus (i.e. ipoker) then you can stack and cascade a little at the same time, so you have the tables in front of each other, but not in exactly the same place, if you offset the tables slightly you can make sure you've always got a small piece of each table visible on the screen then you can click on each when you're not acting to make sure you're not waiting for a descision on one, and just to get an idea where each is at... obv this'll only work for 10 or less, 12-24 I'd imagine you'd be too busy acting to check for tables that may have not popped up.

If you're playing a large number of tables on stars then betpot will be useful, it allows you to automate your standard bet sizing with the mouse to save keep clicking and entering numbers on every screen.

If you are stacking there's a simple script that lets you pull a window out of the stack if you want to follow its action and then push it back into the stack when your finished, it's an AHK script That'd be useful I think. Unless of course you've done your jedi training... and can happily ignore any results after your action so don't care what the outcome is... I'm not there yet, but hopefully one day will be