Creating a list of rules to follow is a great way to help insure your success and the much needed positive trading perspective. Put the rules on the wall next to your computer or the wall above the monitor to remind you were you on a daily basis. For those who have been in the market for years, the most used rules are over often looked because they are so well known. A list can even help the most experienced trader.
Another good idea is to keep a list of your day trade plans in your wallet so you can look them over. Keeping this list can help you avoid losses from acting impulsively by reading over before you take or place a trade.
You can really only blame yourself for trades good or bad. Taking this into account allows you to realize you are in total control on whether or not you make money in the market. This can keep you honest to your plans and not to trade impulsively.