Here is a set of intentions based on traditional Buddhist precepts. Some people I know have them taped to their bathroom mirror and say them aloud each morning:
On behalf of myself and all beings,
I intend to refrain from consciously hurting anyone.
I intend to refrain from overtly or covertly taking what is not mine.
I intend to be sure that my speech is kind as well as true.
I intend to refrain from addictive behaviors that confuse my mind and lead to heedlessness.
My own experience is that saying specific vows evokes an awareness of ways in which I may have broken them. I leave time between each vow for my mind to do a moral inventory. I find that in the context of a relaxed mind, these discoveries feel like gentle reprimands, and I make a list of amends I want to make.
Recite your intentions every morning and they will guide your day. You and everyone you encounter will benefit.