SAG supported fast touring of 100 to 150 miles/day with a light road-bike, large saddle bag for repair kit and rain jacket. (Credit card touring)
Non supported multiple day fast touring, 100 to 150 miles/day. Same as above but add a saddle stem mounted Treck bag for more stuff. (Credit card touring)

Touring with tents, sleeping bag, clothes for wide range of weather, use sturdy touring bike with panniers.

I do all I can think of to get by with the first two arrangements.