Ours went great!
It was me, my wife and one of her nephews. We went to the Walmart outside of town and got there at about quarter after 3 in the morning. It really wasn't packed and the lot was only half-full. The one in town was already packed. They already had their sale products out on skids for anyone to grab. There were separate lines for the laptops, TV's, and other big-ticket items. We just shopped for toys that were marked down and I got my 1TB external hard-drive to put all my songs and videos on. It was great. Everyone was polite and friendly.
We went to one of the closed registers to wait 'til 5am for it to open. No problems.
It was really good because after 4am it became ungodly overcrowded and about two-thirds of the sales items listed were already gone. My wife's nephew did go back to electronics once near the laptop line to see some woman bitching about "waiting in line for 3 fuckin' hours with no fuckin' laptop" while barging past people and nearly knocking him over. All that while we were safely tucked away at the register waiting for it to open.
Just made me glad we got there early, paid for our stuff at 5 and got the fuck out!
When we left there was NO parking spaces at all there.
Next year if we want a big LCD TV marked down we're getting there at midnight and staying all night.