Vehicle Expenses for self employment

[valemus]

I do laundry from my home on the side. I use an app to get connected with clients, pick up their laundry, wash dry fold and deliver back to them. Can I start my mileage record as soon as I leave my house to pick up the laundry, or do I start it when I leave their house? When I looked into the a few months ago, I remember reading about business vs commuting miles and there being a specific comment about running a laundry business from your home But I can't t remember where I read it and I can't to replicate the search phrase that brought me to that page. Any help would be appreciated!

[Mike9241]

Example 2. Your principal place of business is in your
home. You can deduct the cost of round-trip transportation
between your qualifying home office and your client's or
customer's place of business

the above is from IRS PUB 463