If you watch the Attract Mode of most Dance Dance Revolution machines, they will eventually go into a tutorial on how to play the game, and in it, the demo character will stomp on an arrow, and then return its feet to the center. Check it out (it starts at about 0:58 in this clip):

And I see a lot of beginners playing the game like this... and stumbling around. Why? Because the arrows in the songs are set up so that you don't return your feet to center after hitting each one, which has the side effect of reducing the number of steps you have to take to hit all the arrows. Check out the kid's feet in this video:

If he returned his feet to the center after every time he hit an arrow, he wouldn't be quick enough to hit all the arrows, and neither would you.

So don't do it!

In Tetris, you occasionally will have to maneuver pieces so that they fit in spaces where it doesn't initially look like they're going to fit.

Like this T-piece, for example.

It would totally fit in that hole on the left column if some of those pieces weren't in the way.

But if you let it get partway in

And then rotate it at the last second, it slides into place

Which is easier to show in animated .gif form

This is a pretty useful maneuver, since it lets you slip those T-pieces in places where they wouldn't normally go.

Today is Christmas, so I decided to fire up my GameCube and throw in a copy of The Simpsons: Hit & Run, and I was greeted with this:

The halls are decked, and Homer is passed out on the couch in a Santa outfit. Sounds like something to aspire to on a day like today.

Also, I understand that this works on the PS2 and Xbox versions as well, as long as the clock is set to the correct date.