Radio code booklet and instuction booklet. 
Owners manual 
Maintenance manual
Any and all records
 
Toolkit! Unbolt the spare and be sure to check behind it for the toolkit (including tow hook), jack and I think even the windscreen "cover" are stored in there (they are on my 2000) 
 
Wheel lock socket (or keys if aftermarket) are nice to have too 
 
 
touch-up paint(?)