I picked up the last Megs wheel brush for $3.99. I pick up a lot of detailing supplies from Big Lots. It typically only costs a buck or two to try something new. Here's what I've obtained over the past year or so:
Turtle Wax Platinum Ultra Glass (great)
SS Nathans Polish (easy on, easy off, doesn't dust or stain trim, OK results)
The Wax Shop Cleaner Wax (tried it on one panel, but can't remember the results?)
Wax Shop Alluminum Polish (OK)
SS Nathans Bug Blast (worked great)
SS Nathans APC (OK)
SS Nathan Tire Cleaner (not so OK)
Zymol QD (I think it's good for the price)
Black Magic QD (haven't tried yet)
Black Magic Wheel Wipes (any wipe would clean a wheel -- you still have follow with clean/dry towel)
Meguiars NXT Tire Cleaner (haven't tried yet)
Black Magic Tire Shine (OK)
..and for the garage:
PB Blaster Garage Door Lube (works great)