> Tricks of the trade : )
Ok imagine your back is against the wall.  You have people losing power, a location that doesn't have as much power as you thought, and you are running out of options, what do you do?  You get creative.  Damned creative!

The 3 way allows you to branch to 3 receptacles at the end of a power cord.  We use these all the time so I suppose the are not really a trick.  They sell extension cords that have these built in, for a $$.  These 3 ways range from a little over $1 up to around $4, so shop around.

The 4gang box allows you to branch to 4 receptacles at the end of a power cord.  I don't know how much these cost.  These other thing a ma bob wall plate deals add plugs on directly at that wall receptacles.  I just seen 6 outlet ones for $2.50 at a local store.

Ok now for some real tricky stuff, the stuff your father never told you about.  Actually these are the ones you don't want to have to use and shouldn't use unless an electrician has given you the clearance.  Our first little gem allows you to to plug into old style wall receptacles.  You know the ones that have no 3rd prong (ground).  This is not that common anymore.  The next two are basically the same thing as each other with a slight twist.  They both allow you to plug into a light bulb socket (make sure its off stupid!!!) so you can use the power to run your goodies instead of or in addition to the light bulb.  The second one allows you to still use a light bulb and even lets you turn it on and off.  One drawback is that I can not find any of these that have the new 3 prong design.

One last biggie.  At one of our parties we were running horribly short on power due to old breakers tripping early.  Dagnar and Synapses spotted a 240v 2 phase circuit, these are the type of circuits used for appliances like dryers, ovens and the like.  Light bulbs went on, which lead to a trip to the local home improvement store to whip up the pic you see below.  This adapter allowed us to convert the power to 120v so we could use it.  That allowed us to relieve some of the pressure off the old circuits.

> Power stringers
I am not sure if he developed the idea but WhitePheonix, the retired founder of Stompfest made up these cool little stringers to use at Stompfest events.  The are several benefits to using these.  Among them are lower cost when compared to extension cords and power strips.  A drawback however was that it took quite a bit of time to put them together.  This involves buying remax wire (the stuff wiring your house), 4 gang boxes to substitute for power strips, and a plug for the end.  Once wired up it looks like a long extension cord with 4 gang boxes every 5' or so.
[pic coming soon]

> Power panels
The panels we used at FWGG 4 were absolutely the cats ass!  We rented from our venue 10 180amp panels.  I might mention the little fact that it cost us over $1300 to do so and we still had to provide all our own extension cords!  Anyway these panels were setup with a 180amp panel and 9 20 amp circuits.  This made setup a breeze cause we knew exactly how much power we had there.  It also would have made it easy to track down a problem had there been one : )  Before you run out to make some of these keep the following in mind. 
a) you have to have the power to feed the panel in the first place
b) that thick cable coming out of the panel is e x p e n s i v e !!!
c) unless it is built by a certified electrician, you are in deep shit if something happens!

> Generators
Since power is probably the number one problem we have at a given venue, we have looked quite extensively into generators.  Now I am not talking about your uncle Larry's Honda that he uses to keep his radio playing while he is ice fishing like pictured below.  I am talking big suckas!  I will have more on this later but for right now lets leave it at this, if you happen to own one that conditions the power along with distribution panels like mentioned above then your set.  If you don't, be prepared to take out a second mortgage on your home!

> Tools and testers
There are various tools that come in handy for checking out circuits and junk.  I will try to put together some of them soon.

> Related links

http://www.belkin.com