1. Pray near inspired congregants. This is inspirational not for competitive reasons but because it provides constant reminders that if one falls behind in concentration, it can reinspire him.
2. Pursue a deeper understanding of the prayers.
3. Ensure you get enough sleep. But be careful not to oversleep because if you roll straight out of bed into davening, you will be tired and unable to focus. Daven, early in the morning, always be careful to arrive with enough time to have at least 5 minutes to prepare and get situated before davening begins.
4. Daven to Hashem to help you daven with Kavanah
5. Try to be the sheliach tzibbur as often as possible. Partially, because representing the congregation is a serious undertaking, and it encourages kavannah because everyone is watching.