First off, I agree with the majority of what you've said along with the rest of the comments on this thread, and kw purp i'm not trying to single you out or anything... but putting on a headcover? That takes all of what, 4 or 5 seconds? I usually walk and I don't like to hear my driver banging around against the other clubs not to mention I then have to find a spot to stuff the cover in the bag.
Reading putts when it's for bogey, as you can see from my handicap, most of my bests putts are for bogey or worse... just because I'm not going to par a hole doesn't mean I'll concede the hole and just pick up or smack it and hope it goes in.
Parking carts away from the green, with this I'm assuming you meant a considerable distance away as most places I've played require you to stay away from greens and tee's.
As I said before, I generally walk and with an open course i can get through 18 in just under 3 hours. I walked 9 last night in about an hour and 15 minutes. I'll be the first to admit I'm not the best golfer on the course but I wouldn't say I don't know how to play properly because I replace a headcover or line up a putt for bogey.