The real problem is that we've needed to drive on the fresh snow before we really have a chance to shovel it. This packs the snow down compact enough that shoveling it is not easy (or sometimes feasible). It's particularly concerning on the narrow part of the driveway as it makes the vehicles want to slide a bit towards one side or the other (where I have been stuck before).
I spent a while chipping away a few of these berms today while shoveling the few inches of snow that accumulated last night. The progress was slow and wearing. The boys did not seem to make any headway on the ones they attacked. Last year, Janelle poured salt directly on the ones that lead to the garage to soften them up before chipping them away with our large ice scraper.
For the meantime, I get to pretend that I'm off-roading with my Prius as I leave for work.