I don't seem to ever have any problem with ideas, just keep getting more and more. When I think of something, a Santa for instance, I immediately sketch it. Later, when I'm ready to carve I'll do up drawings of all sides, everything I carve comes out pretty darn close to what I've sketched.
If I want to do an animal I look for lots of pictures, that helps me get the pose close to what I want and the features correct. Hubby is a huge help there, he's an avid hunter and outdoorsman so he can tell me if things look 'right'.
I only use basswood, so much nicer than the ends of two by fours I started out with!!

Callynne