If you are looking to really rise to the challenge and improve your game all around, you'll find that the 180 Greens digital putting game and trainer is a great training aid.  This golf training aid actually offers 180 digital greens to help every golfer reach his or her full potential.  The 180 Green digital game is great not only for training, but also for entertainment as it really is fun.  The system offers all of the indoor putting challenges you could ever need as well as 99 feet of distance in the digital game, voice activation, laser distancing technology that makes the game more realistic, and both practice and game modes so that you can really change up what you are doing so you don't get bored.  This system usually costs about $500 but you can usually find it online at a discounted price.  That may seem like a steep price, but when you consider that this is the only golf training aid you may ever need, this is a great investment that you will be able to use over and over again.  Many friends like to get together and challenge one another in a variety of greens to see who can do the best.  This system is great for the novice as well as the old hand at golf.

If you want a simple golf training aid you can always go for a putting green such as the Expand a Green system that offers one the ability to practice their putting with two holes and an expandable green.  This is a great way to improve your accuracy as well as your stance, hand positions, and more.  Most of the time you can find an indoor putting green for under $200, which is a bargain when you put the putting green somewhere in your home that you can use it every day to truly train.

A golf net is also a great training aid, though many people don't think of it when they want to train and improve their golf game.  A golf net is simply a net that will allow you to gauge where you are hitting the ball and when.  When you get an idea of where you are hitting a ball you can tweak your stance to improve your game.  Golf nets come in a variety of shapes and sizes, but a three sided or dome shaped net is often the best because it will catch miss-hits.  One that has a target also helps you to refine your swing and accuracy.