There are lots and lots of different ways to build diy kitchen cabinets because there are so many different ways to join wood. You can use different methods for joining the face frame as well as the cabinet carcass. I have A LOT of projects to finish and don’t really want to spend extra time on fancy methods. Fancy techniques may look cool but with modern advancements in tools they are not necessary. You can build strong joints and nice looking pieces with simple methods. I generally use only a few different joints. I like to keep things as simple, easy and fast as possible.