That 10,000 number really puts things in perspective. I read somewhere that the average chimney sweep will do maybe 800 to 1,000 jobs in a career, so you're blowing way past that. I actually heard about a guy out in Ohio who hit 15,000 last spring and his logbook was basically falling apart, he had to switch to a digital app just to keep going. The squirrel nests are the worst, I pulled one out last month that had three babies in it and the homeowner almost cried. Your spreadsheet is smart, I just count my invoices at tax time and it always feels less impressive.