peculiar motion and the CMB

The CMB-dipole is usually interpreted as motion dipole, i.e. generated by the Earth’s movement relative to the CMB and would in this interpretation not contain any cosmological information. Are there other imprints in the CMB due to peculiar motion of the observer?

bonus question: how large would seasonal variations of the CMB motion dipole be?

bonus question 2: can you estimate the order of magnitude of \((10^{10}!)\)?