I just won't shoot that much, I am quite project oriented always on tripod.etc and at home we don't have any big skyscrapers, lakes or bridges so unless I travel. when I sent to USA 10 rolls took 18 months, so far I have 2 rolls of slides from my 10 day Japan trip 3 months ago, I did shoot b/w so my usual rate is 3 rolls for a 10 day trip. which why I may switch to medium format in due time. exposed film just sits in my chest freezer in my garage.