[Lucky]

Meguires for me. Recently bought the clay bar kit. Wish i'd tried it earlier. Really easy to use and the results are superb, especially on black. Once clay barred, I then used the 3 stage stuff, first paint crystal cleaner, then polish, then carnubra (or however its spelt!) wax. Takes alot of time, but once its done, you can just use the speed detailer for a while and the finish stays for a long time. Wouldn't mind trying the blackfire stuff, but its just so expensive compared to meguires. I use the meg's tyre dressing, which looks great, but its a bugger if you get it on anything, or brush past the car with clean jeans on!.