[dropcap]N[/dropcap]ext week, we observe Labor Day, a celebration of the American worker. You work hard your whole life with the hope that your efforts will ultimately allow you to achieve your financial goals, such as a comfortable retirement. But for that to happen, you may need to apply some of the lessons of the workplace to your efforts as an investor.

So, what are these lessons? Here are a few to consider:

Be consistent.

The most successful workers are the ones who show up, day after day, and...