The shed was built in '07. I got a stretch of 2" inner duct long enough to run between the house and there in the summer of 2011. Trenched it in and forgot about it. Until now.
I used 2-2-2-4 aluminum cable. I have a 200 amp, 40 space panel in my house. So I put a 100 amp double pole breaker in my panel, used 1 1/2 schedule 80 pipe out and down into the ground at both ends. The end of the inner duct and the end of the schedule were left about a foot and a half apart, so I had room to lay a loop of cable between the two. (frost loop)
I used a 100 amp, 8 space Square D panel in the shed. Just two circuits for now, one 20 amp outlet circuit for plug-ins, and one 15 amp circuit for lighting.
The outlet circuit is started off by a 20 tamper resistant GFCI outlet. Boy, codes are bordering on ridiculous these days.

The lighting circuit is just 4 single bulb bases, and one exterior light. Separate, single pole switches for inside and outside in one double gang box. The exterior light is an LED photo sensitive, motion sensor.
Some craptacular darn near dark pics:



I had one more pic showing the three wires going into the double gang box showing the 'FEED', 'Interior LOAD', and 'Exterior LOAD' labeling, but it didn't turn out.