This, from John Newton (of Amazing Grace fame) is great:

“If two angels were to receive at the same moment a commission from God, one to go down and rule earth’s grandest empire, the other to go and sweep the streets of its meanest village, it would be a matter of entire indifference to each which service fell to his lot, a post of ruler or the post of scavenger; for the joy of the angel lies only in obedience to God’s will.”

What a fantastic attitude towards service to God! May each of us rejoice in the fact of God deigning to use us at all to bring glory to His name.