After taking time to praise God, Jesus comes to requests. He tells us to ask for our needs to be met. This is a simple enough statement, but as flawed human beings we like to complicate matters. We too often ask for wants as though they were needs. We also ask for more than our daily needs. I believe in planning ahead, but I think we can fall into the trap of asking for more than is reasonable.
So when we pray for our needs, we should allow God to guide our prayers. He will show us what our needs truly are and then He will provide.