Too many people try to get the perfect landing - they end up at 2 inches wallowing around hoping to time lowering the collective with the perfect attitude of the aircraft. Lots of problems with that approach.
I just tell students to set up a very slow sink rate and to adjust collective to maintain that sink rate through ground effect, i.e. don't let the descent stop. When the first skid touches, continue lowering the collective at the same rate you've been lowering it so that you get some weight on the skids. When the first skid touches and the helicopter rolls towards the other skid, give a little opposite cyclic just like on a slope landing so that you don't start sliding sideways.
Don't allow the helicopter to drift sideways during the landing or you'll be asking for dynamic rollover (especially on turf), but don't stop the descent either - just keep working the cyclic during the descent so that you maintain your position over the ground. You can let it move forward a little if you want, but ultimately you should be landing with no motion at all.
Keep loose and relaxed - nobody does good landings when they are tense and tight.