Marketing materials include anything that helps people to find your business.
For flyers and your company logo you can use
https://www.canva.com/ if you don’t mind doing it yourself. This is the site that you saw me use in the video for the previous section just before this one.
Most people use VistaPrint to order their business cards. If you do use VistaPrint, here’s my affiliate link to their site http://reward.vistaprint.com/go.axd?ref=2GWS1Y
You may get a discount for using it. I honestly can’t remember.
VistaPrint also has shirts, flyers, and all types of other things for marketing. You will want to order some company shirts for you and your workers ahead of time before you get ready to clean.