Some blog posts I used to find useful things to do in Ubuntu 13.10 are as follows.

My most favorite is this one because it listed some very useful tools. http://www.webupd8.org/2013/10/8-things-to-do-after-installing-ubuntu.html

This one had some useful stuff, however they seem to be all about making Ubuntu not Ubuntu anymore. http://www.noobslab.com/2013/10/tweaksthings-to-do-after-install-of.html