Towels:
Always have a bag full of Microfiber Towels as well as other towels specifically designed for professional cleaning that do not leave lint nor damage surfaces.
Auto Glass Cleaner:
Firstly, you can serve yourself well by tossing the Stoner Invisible Glass, should this be the original.
This product performs poorly compared to many other auto glass products.
The Stoner Invisible Glass Rain Repellent is a noticeable improvement over the original product.
If you are set on Stoner brand for some reason, then this product is actually fantastic in both application, performance, and final result.
My recommendation for auto glass cleaner specifically to have in your car at all times would be one these two:
Armor All Auto Glass or Meguiars Perfect Clarity Glass Cleaner.
Detail Spray:
Always have a bottle of Detail Spray.
What brand is your choice.
I suggest these two products for great results:
Turtle Wax Ice Spray Detailer or Meguiars Quick Detail Spray
Carpet and Upholstery Cleaning:
I highly recommend this product:
Turtle Wax Ice Heavy Duty Mat and Carpet Cleaner.
It cleans great, smells great, and has a scrub brush contained.
Dash and Interior Surface Panels:
Experiment with various brands of surface wipes.
They are convenient, accessible, and come in all types of scents.
Find one that you like and go with it.
Interior Cleaning Tools:
Always a good idea to have a small bag, or bag compartment, for interior cleaning tools.
Degreaser:
You will need a bottle of a quality degreaser:
Many degreasers need to be diluted, so have a spray bottle convenient to carry in your vehicle with the rest of your auto supplies.
Tires and Wheels:
I it is a self car wash, then your wheels and tires should be mostly clean from the pressure washer and soap.
I suggest using your degreaser to finish any cleaning that needs to be done.
Then have a bottle of a wheel finisher/cleaner of your choice and a bottle of tire dressing.
For the wheel cleaner, the product choice depends on what wheels you have and the material they are made from.
Typically, a good class cleaner, such as the ones mentioned above, can clean your wheels and give it a showroom ready shine. So consider that.
Then use the tire dressing as a finisher to treat the rubber of your tires and make them shine.
This advice is intended to be simple and to cut to the chase.
It is intended with the daily driver vehicle in mind, and not a museum quality vehicle.
Hope the OP finds this helpful.