This is what I did:
Cheap way...............
1. buy scratch x and rub that stuff over the scratched areas. This of course, will not take out the scuffs, but it kind of cleans it and polishes thing up a bit.
2. Get the touch up paint and try to put it on as evenly as possible. It might look like crap, but once dried, the paint actually kinds of shrinks and ends up being more flush.
3. Once tried. Take 1000 grit and light lightly sand the areas flat. Then take 2000 grit and sand/polish down some more.
4. used scratch x and polish the heck out of the area.
Tried to keep it all in the areas of the blemishes.
It's not going to look perfect, but it will make things look less noticeable until your ready to really get it done from the shop.