You are so correct about the SWAMPSNIPER!!!! I have followed his posted shots over time and marveled. I have found the best 'teachers' are modest. All the cameras I have ever owned were 'gifts', first of which was back in the 70's a Polaroid... which was fun but not what I really wanted. I was then given a Nikon FG and I nearly wore it out. I would drool over the digital cameras when they were first available and finally was given one approximately 7-8 years ago. It was a Canon PowerShot... I loved the size but the camera was very limiting.
Then I got the best surprise when my dear family gave me a Nikon D90. The first couple of years I treated it like it was my 'baby' and was not at all comfortable in carrying it around. I am still very much in the discovery stage of learning how to use all the functions. Although it has 'video' I do not really care about that function. I am impressed with the life of the battery as compared to the little Canon.
So I would not even call myself a 'novice' yet.
I've kept the sensor clean and that is the vital part.
When you change lenses in the field a lot you need to learn to do your own sensor cleaning. Sooner or later something will get in there that the auto function won't handle.