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Napkin math · 2026-09-30

Napkin math: is a mobile pet grooming van worth it?

Before we build anything, we do the math on a napkin. Here is the one for a grooming van in Las Vegas. The numbers are made up to show the method.

The idea

A van with a grooming table, water and power. It drives to the customer's home. One groomer, four days a week.

The math (illustrative)

Price per groom$85
Grooms per day, 4 days a week, 50 weeks5
Revenue per year$85,000
Running costs (fuel, insurance, supplies, software), about 30%- $25,500
Groomer wage- $35,000
Left over per year$24,500
Van and equipment, one time$45,000

Payback on the van: about 1.8 years. That is fine, not amazing.

What would make us say no

The next step

We do not build the van. We put the idea on its own web page and count sign-ups. You can see that page here: the pet grooming waitlist.

Got an idea with a clear customer and a clear price? We do this math with you for free, and we do not publish your idea without your written OK.
This idea has its own test page: Mobile pet grooming. A groomer comes to your driveway. Book in 2 minutes.

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