Previously I have said that sometimes the most effective way to reform Sunday worship services is to pay less attention to them. Here is a word from the apostle Paul:
Formerly, when you did not know God, you were slaves to those who by nature are not gods. But now that you know God—or rather are known by God—how is it that you are turning back to those weak and miserable principles? Do you wish to be enslaved by them all over again? You are observing special days and months and seasons and years! I fear for you, that somehow I have wasted my efforts on you. (Galatians 4:8:11)
Elsewhere, in his letter to the Romans, Paul softens this by saying the weak should not judge the strong, that those who consider every day alike should not condemn those who consider one day sacred. But the overall impact seems to be that we should focus on everyday worship, not Sunday worship. What happens for you when you hear that?