My project is not washing service but the delivery of construction bins. Basically a homeowner who is cleaning their house or remodeling etc, can go to the app and schedule a bin delivery. The service vendor will drop off bin(s) and pickup when homeowner schedules for pickup. The price will include keeping bins on location for 7 days, additional days homeowner will be charged until he/she schedules pickup. Also if the weight of trash or junk is more than the limit per agreement, then they'll be charged additional fee per 100 lbs. So that's in a nutshell. on vendor side, ability to keep track of their bin inventory.
I myself will not carry bins, just provide platform for vendors to rent out their bins through my service. similar to what Washos and Mobile Wash are doing.
Of course, like Washos with different washing options, I have different bin sizes.