My grandmother on my mother's side uses this prayer every day and so do I. I think it's one that we should all use.
Dear Lord, help me to remove from my mind every thought you would not sanction, and every feeling from my heart that you would not approve.
Grant that I may spend the hours of the day gladly working with You according to your will.
Help me just for today and be with me in it: In the hours of work that I will not grow weary or slack in serving you. In conversations that they not become occassions of uncharitableness.
In the day's worries and disappointments, that I may be patient with myself and with those around me.
In temptations that I may be generous and loyal, so that when the day is over I may lay it at Your feet with its successes and failures and feel that life is real and peaceful when spent with You as a guest of my soul.