don't delay the mitzvah

I don't have time to really write about it, so I'll just pass on the mareh makom: The Avnei Nezer has an interesting chiddush that when you have a Shabbos in between Yom Kippur and Sukkos (like this year), since you cannot build your sukkah on Shabbos, the week before and the week after count as two seperate time periods.  Therefore, if you fail to build your sukkah before Shabbos, you have violated the din of delaying a mitzvah.  LINK.