When to switch lighting modes?

Is the right time to switch your lights to a different scheme in between songs? Is this the most common point, or is it okay to run different schemes throughout one song?

I have two 48 inch black lights
1 strobe
1 100 watt gobo effect that covers about 12 feet
1 moonlight effect that covers my whole 14x14area
1 12 mirror ball
1 par can pointed at the ball
1 large fogger

What are some definet combinations that will work with my lights? Lets say Thriller by MJ comes on, what would be the lights to use? Then Soul Sonics Play At Your Own Risk takes over at the end of Thriller, would I switch to the ball on or is the ball only for slow songs?

At what point do you shoot fog out, and how often. What lights go good with fog? Are balls a common staple for slow songs? some people dont like strobe lights, can it be used to much? And at what speed do you use the strobe, fast mode or slow. Would you keep a strobe on through a whole song.

I know what I need Darrins Dance Moves for Lights.

Hey if you only want to tackle one question please does so. Especially a definet NO NO combination.

My Backround info is: Once a year new years party on a 14x14 foot dance floor on my oak dining room floor.

Thanks,
Dominic