I just started grilling this summer (I've always lived in apartments that forbade grills) as a complete newbie.
I'm jealous of how clean your grates are.
Other than the few steaks I've tried, I've been mostly grilling skinless marinated chicken breasts on high (gas grill, grates always Pam'd), and I brush vigorously while it's still hot (after I let it burn everything up for a few min).
I'm still left with gunk between the grate slats, where the brush doesn't reach as well. What is your cleaning process to keep them looking that new-ish?