I'll throw a few out there for you. I'm a professional detailer, but these are the products I use for my personal vehicles and big shocker here - I want something as easy as possible for my own vehicles. The last thing I want to do after working all week is to spend my weekend trying to clean the cars. The one thing I will tell you is that it is near impossible to buy good products at your local shops.
If you're wanting simple and easy maintenance, use Optimum No Rinse(not the Wash and Wax version) to wash with. If you follow their process it will leave you with a perfect scratch and swirl free wash every single time. It's super easy to use, requires no hose other than filling up your bucket, and best of all you can wash wherever you want. I wash all of my customers vehicles with this product right in my garage, which allows me to detail year round. 1 32 oz bottle will give you about 16 washes. They also sell it in a Gallon. Even better - it can also be mixed in spray bottles to be used as a Waterless Wash and an Instant Detailer. You can purchase it on Amazon, or directly from various detailing websites such as AutoGeek.com or DetailedImage.com. Trust me, it's worth going out of your way to get.
Once it's washed, McKees37 makes excellent user friendly products to care for your vehicle with. They make your vehicle look great and they offer a wide variety of products for whatever you're trying to accomplish. They also have outstanding customer service and stand behind their products very well. Their pricing is also very reasonable. I highly recommend their HydroBlue coating and Spray Wax. It is easy to get overwhelmed with how many products they offer, but they also offer a lot of kits as well. Their founder is the same person who came up with Wolfgang, Pinnacle, and Blackfire branded products.
Between Optimum Polymer Technologies(Makers of Optimum No Rinse) and McKees37, they are the best DIY products out there IMHO that aren't insanely overpriced. I spent months researching before getting back into detailing full time and some of these products that cost 2-3 times as much do not even come close to producing the same results.
I will leave you with one last recommendation. If you want a great sealant and wax combination that will make your black car look unbelievably deep, grab a bottle of Jescar Powerlock Plus and Collinite 845 Insulator Wax. Apply the Jescar Powerlock first, then follow it with the Collinite after it has cured. That combination will make your car look like a show car and will last a minimum of 6 months. Some have seen it last 8-9 months and still bead like it was just applied.
I apologize if that was a little much, but i'm more than happy to help if you have any questions.