Exactly right...if the intention to do some work is for love of God, then it is a sanctifiable task.  All work then can become prayer, conversation with God, even if it's done with our body. 

Our intention should be to do it out of love, and then once we decide (will and intellect working cooperatively) that the work should be an act of love for God, we should certainly do it with all our heart, soul, mind, and strength.   Interior reconciliation as it were; interior unity with God! 

That's actually one of the values of saying a morning offering at the beginning of the day...to rectify/intensify/renew one's intention.