gahhhh so true and yet so difficult to follow those rules when you're just starting out. It always seems like you're missing something that can make your life easier. I'm just going to have to do a better job of convincing myself to use what I currently have and stop wanting more and more. I do want a prime lens though more for the really good low-light performance than anything.
Hiking has been my main source of photography practice lately but I'm working on expanding the environments I use. I'm going to be taking the 18-55 and 55-200 to vegas for 4 days starting this Saturday so that should take me out of my comfort zone especially with the low light and architecture. I'm also going to bring a tripod with me to try and get some shots of the city if I can find a good view.
A 35mm f/1.8 would be a great prime to take to Vegas!!