Awsome!
While both the above solutions worked for me (thanks darkadept), clicking a single check-mark as suggested by Kovidgoyal is much easier than manually editing all my stylesheets' (thanks kovidgoyal).
Now onto a new question:
I took a hint from Calibre help docs and would like to try and reduce the page margins a bit to reduce page flips and battery drain. However, my Kobo doesn't seem to observe the margin configuration I setup in Calibre.
At this point I'm thinking this is Kobo's problem again, that it doesn't read margin info from the ebook and just has it hardcoded into itself.
Has anyone been able to change the page margins?
My assumption is inline with the Kobo marketing strategy of getting a functional, barebones eReader out to the masses first, and then upgrading the firmware to add these "extra" features in later. I'm cool with that, just trying to figure out what Kobo is capable of at this point