I'd imagine you have this problem mostly with irons. If I had any sort of golf specialty, iron and wedge striking would be it. Here's a few suggestions.
I've showed a few people, my dad incluced this little drill and all started striking irons better immediately. Take 2 tees, broken ones work fine. Put both in the ground with one about 6 inches or so in front of the other. Adress the back tee as if it were your ball. Hit the first tee and then by keeping the hand ahead, maintaining the shaft angle, take the second tee out of the ground through impact. I literally saw my dad correct about 3 faults at once by doing this about a dozen times. He had the back of his hand facing the target perfect. Unfortunately I showed him this right before we played, he broke 90 for the 1st time of the year and beat me.
Give it a shot. It really works.