When you set pole lights with concrete pedastals, how do you lay the conduit to make this job as easy as possible??

Assume pvc pipe in and out.

I went through another major thrash today because I screwed up. I wasn't on site the day the conduit was buried.....and that was about 9 months ago. We had problems finding all the conduits today and in fact didn't find them all. I think that I know how I'm going to do it in the future, but I'm looking for tips from you pros.

GJ