It's important to practice your strong and support hand shooting and it's easy to do with this simple drill: start at low ready with the gun in your strong (dominant) hand. On signal (with or without a timer), raise your gun and shoot 10 rounds at a target at least 5 yards away. Repeat with your support (sometimes called "weak") hand. Once you've mastered this drill at 5 yards, move the target out to 10 yards.
Here's a fun and challenging drill you can shoot either on the range or during a dryfire session. The 6 in Six Drill can help you improve your accuracy and increase your comfort when shooting at distance.