For touring in the UK.
Carradice super C panniers & stuff sack, 3 drink bottles, lights and map case.
Front panniers loaded with tools, bike spares, Trangia with gas burner and canister(s), matches, eating kit, emergency foods, maps, headtorch, rope, tent pegs, first aid etc.
Rear panniers loaded with Alpkit sleeping bag, silk liner, Thermarest pillow, spare clothing, washkit, toiletries, flipflops, rainwear, food, Platypus water carrier, money, Sony camera, Eton radio.
Stuffsack loaded with Hilleberg tent (1 of Nallo, Stalon or Nammatj as suits), Thermarest prolite 3 or Exped downmat 7 and Haglofs camp chair.
The amount of food and drink carried is proportional to how far away the next 'shop' is.
I try to split the weight 40/60 front/back.
The typical load is 22-25 kilos.