When my children were small, the best way I found was to use Saturday evening for preparation. The house should be picked up, clothes ready for Sunday, food for Sunday dinner should be prepared, and everyone to bed at a good time. Sunday dinner was usually a crockpot meal very simple. Knowing that this is important to God and one of the only 10 things He commands us, it is worth the extra effort. God has given us 6 days to work and He wants to bless us on the seventh with rest.