We have 7 players including DM, with 2 leaders. I've taken to making tokens with the bonus on them. If I hit with a Righteous Brand I hand the token to the player with the bonus. It has the +4, that it's a power bonus and when it ends written on the token. When it's over they hand it back. I've made a couple tent cards for encounter long effects.
My DM made a nifty stack of condition cards and I'm going to make some "duration tokens" so we can slap a condition card in front of a player and put a token on it (save ends, end of monster's turn, etc). We have been writing those conditions on the battle mat in front of the player, so this will be about the same.
Over all I'm feeling more open to experiment with the fiddly bits of RPGs than I have in a long time.
PS
Last game had 6 Players and ended at mid-Paragon
There were too many modifiers. Players forgot saves, forgot bonuses and penalties, forgot action denial effects (daze, stunned, immobilized, etc).
Some things were easy. As the wizard, whenever I had a static zone, I just drew it on the battlemat. For our game, we rarely missed anything that involved a direct drawing on the battlemat.
Other things were difficult. I can't tell you the number of combats where the DM said, oh, forgot about this aura. Anything that involved a mobile area was difficult to both represent and to adjudicate. We tried creating index card zones that we could shift around. This was not ideal as it often required moving minis a lot.
In my eyes it boiled down to anything that visible was much more likely to be remembered. I am considering solutions to this problem (especially player effects). My best idea is status cards that you pass out to players when they get hit with a status. The first attempt of one inch, colored, wooden discs worked well for about 5 levels. After that, there got to be so many effects on a target (stacking 5+ was common) that they proved impractical.
I am hoping to aleviate some of the zone problems when I get my projector setup for gaming.
I can totally see this, as we have had that problem as well.
We use smaller printed cardstock tokens that we line up next to each other near the mini.
Wow. Just... wow. No offense to your playstyle - if it works for you, more power to you - but if it ever gets to the point that I need a whiteboard to keep track of all the modifiers flying around, I'm throwing out my 4E books and going back to BECMI.
(Okay, I probably wouldn't actually do that, but I'd start house-ruling the heck out of things in order to simplify the system.)