Tip from Full Tilt pro Ben Roberts

Many beginner poker players naturally gravitate toward a level of game where they feel most comfortable. The reasons for their choice may vary, but often include the size of their starting bankroll, and the amount of money they feel comfortable wagering in a particular hand or throughout a session.
This is perfectly normal and reasonable. One of the things that separate truly profitable players from winning players, however, is their willingness to step out of their comfort zone and explore higher limit games.
After a few hundred hours of play, many people can determine whether or not they are beating their regular games. For those players who are showing a profit, there are some for whom taking home an extra $100 or $200 per week is perfectly acceptable. They're mainly playing for fun and the winnings are a nice benefit. For others, however, poker may be a steady source of income, and boosting their bottom line could significantly affect their lives away from the table.
One of the smartest things these players can do is to stretch their games and play at higher limits. With proper planning, and the right approach, the rewards can be immeasurable. To that end, I have some suggestions for players who are thinking about taking their game to the next level. "