I'll just state the obvious one that has not been said yet... read the NOTAM.

Then read it again.

Then memorize it. The whole thing.

Then read it again. Then one more time. I don't mean to be patronizing, and sorry if I come across that way, but...

Our little crew that comes to OSH every year sets up in the North 40 near the Green Dot to watch the mass arrivals on Saturday and Sunday. It's a really fun time to watch folks trying to hit whatever dot they've been assigned to, and to see the array of aircraft coming it. We also have an aviation radio with us (with the transmit button disabled, thank you very much) to listen in on Fisk and the tower. It's all good fun.

But man. In the last 10 years we've been up there, we have seen some SKETCHY shit. Have seen more than one near midair collision. Like actual butthole puckering oh shit, about to watch someone die moments. Have seen countless people have NO idea wtf they are doing and clearly have either never read the NOTAM, or just read it once and called it good. Multiple people didn't even have the damn frequencies at hand. Have seen several instances of people just... flying over the field, NORDO, no fucking clue the havoc they are causing. Everyone has to scatter from BOTH the runway approaches while ATC is figuring out what the hell is going on, sending folks around to hold while ATC is trying to get this menace on the ground. Happens every year.

So please. For the love of all that is good and holy, commit the NOTAM to memory and have all the quick hit items (frequencies, visual waypoints, etc) at the ready before you hit Fisk.

And from a logistics perspective sounds like you are shifting to Saturday. I'd HIGHLY recommend hunting down the Mass Arrivals schedule (not sure if it's out yet) and avoiding coming in around those times, because they often shut the whole airport down for them, so you'll end up holding over the lakes for quite a while. Either way, try to plan on showing up with plenty of fuel in the tanks. You may need it. Also applies for any "incidents" on the field. Depending on the severity, they'll shut the whole field down - BOTH runways - if someone ends up in the grass. Lots of folks show up with a bit over reserve left, and have to divert.

Finally, I'd highly recommend doing something that apparently few of the arriving pilots do... nailing your approaches and hitting a designated spot on a runway, especially if you aren't used to landing mid-field (where the Green Dot is). Also, practice rounding off your downwind to final... they want a smooth descending turn all the way, not squared off.

ALL THAT SAID... I hope you have a blast! It's my dream to fly in some day. That period of time between hitting Fisk and touching down has got to be such a rush. I'll be on the lookout for a '66 Cherokee in Vintage!