Previously,
10-22mm + 18-200mm + 50mm/1.8 + Di466 flash + tripod
Up and coming,
10-22mm + 17-55mm/2.8 + 70-300mm + Di466 flash + tripod
A lot depends on weather and location. The more cooling it is, the easier it is to carry without sweating like a pig. Sometimes, no need to bring everything out, can leave some of it in the hotel if not needed.