Yes, shanghaiing Nemo's post with this question...
What do you used/used for light in a tent?
If we were going to be on the trail for a week or so, we always carried a candle for light in the tent. At first we used a clamp on ash tray which we affixed to the tent pole. Then we moved to a collapsible candle holder that was a box of sorts that collapsed flat when not in use.
On another note (Sorry Nemo): We moved from a tent, tent to two triangular "half's" of material we bought from the original REI in Seattle. We would tie a piece of parachute cord (550 cord) from a tree to a stake in the ground and throw one of the triangle halfs over the cord. Staked out the corners, then laid down the other triangle as a ground cloth. In the winter we carried an additional small triangle for a door which was secured with clothes pins.
I am sure you younger backpackers have all kinds of fancy tents now.
So what kind of light do you use in your tent?