I just thought of this... I'm sure I'm wrong, somewhere, or there'll be a flaw in my logic, but here we go.
Assuming the universe is infinite in size, then the edge of the universe is infinitely far away from me in all directions.
If the edges of the universe are the same distance away from me in all directions - an infinite distance - then all points on the edge of the universe are equidistant from me.
Surely this means that I (and everyone else) can logically claim to be the centre of the universe?