Quickness and accuracy score form the slot' slap shots do not provide either. While it is seldom good to be offside, it is critical to complete 2 on 1 or 3 on 2 situations as many times as possible in each game. It is best to be conservative when going over the blue line in these situations. When throwing the puck into the zone, shoot it ot the opposite corner or off the end boards where it will come out at an angle difficult for both the gaoltender an ddefensement ot handle. Don't retaliate from checks or infreactions, whether legal or not.
Retaliation often results in a penalty and referees often miss the opposition player's infraction.
Communicate with your line-mates and other teammates. It is one of hte most important parts of teamwork. Constantly practice your weakest skills. Get away from the habit of just shooting when you have free time in practice.