Greeny is due for her 30k service. I was just wondering if anyone had any suggestions/advice on things they should check out/fix/adjust, etc that they might not usually do. I am noticing a bit of a rattle during normal driving, seemingly coming from driver's side front. Anything else I need to watch out for? They want $300+ for this, which I was kind of expecting, but I want to get my $'s worth.