(Insert noob disclaimer here, with a pinch of "but I read the site FAQ!")

So I'm just getting up to speed on Why Bloat Is Bad, and I'm trying to start a clean 'hood'. I had some lots that I wanted to keep due to custom decorating and the fact that I hate a) spending too much time trying to decorate or b) trying to good CC lots that fit my tastes.

Er, yeah. Long story short, I have been using the Package Lot option, and I'm ending up with 100-140mb sized packages so far. These are not huge/ostentatiously decorated lots (some of them are quite small), and I don't have a larger-than-normal amount of custom content. 

Is this normal, or did I break something?