Since moving not that long ago, I've discovered exactly how many small things it takes to maintain one's indoor environment. I owned a vacuum, but it's also necessary to own a broom and dustpan (who knew?), not to mention that if you want to have guests, you need to have more than two seats available, since not everyone is THAT comfortable with sharing.
Of course, being the thrifty person that I am, I tried to get as much of this as I could without spending a lot of money. "My friend has an old picture he doesn't want that's PERFECT for the living room!" and "My parents have a bunch of old brooms in their shed," and "I think my cousin has an old leather couch that doesn't suit her repainted living room..."
My roommate has more sense than this, thankfully. He went out and purchased a brand-new broom and dustpan, without missing bristles or cracks in the plastic. He has also discovered an inexpensive black loveseat that will be perfect for the living room, and produced from somewhere a collection of really great movie posters that will suit much better than a sedate picture of different-coloured leaves.
I also heard a horror story about a friend who accepted a neighbour's old couch only to find that while sitting in that neighbour's garage, the couch had acquired a sizeable bug population that was NOT welcome in said friend's house. So while I might have to shell out some money (in addition to the rent), I will have a happier, more comfortable home in the end.
Not to mention a happier roommate.