After about 14 months I decided to do a "thorough" clean on my case. Unfortunately, I ran out of canned air and I did not get much cleaned. I took part the front cover and attempted to clean some of the dust filters. I removed my front and back fans and cleaned them disinfectant wipes. I though about taking my heatsink off to reapply some thermal paste, but I didn't want to bother taking out the motherboard. I ran out of canned air right as I was moving on to the heatsink. So right now that is not so clean. It's as clean as a 2-month old build. I got most of the dust in the PSU cleaned. Sadly, I don't have any pictures for you guys.
I do have a question though: Are water-cooled systems easier to clean? If so, I'll definitely dish out some cash for a water-cooled system on my next full build.