...make sure you contact your schools to see that they have BOTH of your scores.
I just learned yesterday - as in two days before the January 15th deadlines - that ETS sent both my physics GRE scores to some of my schools, and only my worst, less recent score to the other ones. I have no clue how such a screw up is even possible, considering that they should be sending the exact same piece of paper to each school. ETS continues to amaze me with their incompetence.