This seemingly silly question is harder to answer than you might think.
When you wash the dishes, are you depriving God of the opportunity to perform a miracle? Would God be more honored if you prayed for Him to do the pots and pans, and He did?
We all instinctively realize the answer is no. God is (generally speaking) more glorified by us doing the dishes than by Him becoming a supernatural dishwasher. But why? I'd like your own thoughtful input on this question before I attempt an answer myself.