I've been into this hobby for just over a year, and I'm learning new things all the time. But I still haven't done all that much. I downloaded some test tones at 5 Hz increments to see how smooth my sub's output is (not too bad, actually!), but that's it.
I'd love to do some room treatments, but my space is such a strangely-shaped room that I'm not exactly sure how to start. I've often thought about inviting an audioholic over sometime to just take a look and make some suggestions, cos it's all Greek to me.
I also have WAF to contend with -- and I'm okay with that. My HT is in my living room, and I do like for it to look nice. I've had people shocked to hear that I decorated the place myself, and it feels kinda good when people say how much they like my place.
cheers,
supervij