Know what ‘it’ is before you’ve shook on it.
On a fixed price, every argument about what was included comes out of your margin. ShookOn asks you about the job, then writes the scope page you attach to the contract — so what you’re doing, and what you’re not, is agreed before anyone picks up a hammer.
Room by room, in plain language. You only get asked what’s relevant — a powder room never asks you about shower valves.
Say vinyl siding and it knows the house wrap and trim go with it. It also flags the things that cause arguments later, while you can still price them.
Out comes a clean scope page your client reads and signs — ready the same day you hand over the quote.
Every line spells out what’s in the price, what you’re assuming about the house, and what isn’t included. When the homeowner asks why painting costs extra, the answer is already on a page they signed.