Hey boys and girls - I've posted in the ceilings and walls section of the forum but never wiring. I'm slowly trying to update my garage and use it as a learning experience so that I can then come into the house and apply better practices throughout. The misses will be happy if I screw up outside first... Anyway, I recently went to replace the loose outlets and I came across something that seems wrong to me: I have a single 20 amp breaker in the basement for my garage outlets, there are 4 dual gang boxes, and literally every outlet on the line is "daisy chained" for lack of a better term in plastic boxes. It looks like the attached image with the 15 amp outlets below. This seems to be the way that most YouTubers recommend they get installed, but I came across this video: https://youtu.be/nFLLuq6mfEc Joe here says that is not safe. It also looks like his method would make it easier to add and remove or replace devices. I also noticed that I have 12-2 wire connecting all of my outlets, and the outlets are 15 amp standards. I'm thinking now I need to upgrade to 20 amp outlets and wire these in a different way - I'm also adding metal boxes because I just want these to be rock solid. Does the attached image with the 20 amp outlets make sense - or is this all overkill? I'd also like to know this because the exact same 20 amp breaker, 12-2 with to 15 amp outlets is run throughout the rest of my entire house... if I prevent the house from burning down I'm pretty sure I can get the green light on a new bass boat - just saying... Thoughts? Thanks!