My suggestion (I tell this to a lot of people interested/starting out (not sure how experience you are) but besides the point, your subject has to be interesting. You can take perfectly composed shots with a nice DOF and great colours of a coke can, but its still a coke can. Car shots are awesome cus their well composed, good colours, and its an interesting subject. Don't be afraid to ask around and say "Hey, do you wan't to shoot some portraits or skiing or whatever this weekend?" People are usually down cus they get free shots at the end. That for me was the biggest change I've had, I started out not really knowing how to set shoots up to get the shots I wanted. Hope that helped, I also friended you, mines in my sig.