I don't think that other than basic things like food, water, etc. there is anything else I can't live without.
As listed above, it seems that the thread poster missed too much. We are living in a community, not individually. Things are related to each other.
I have to say it's is a long list of things I can't live without e.g. food, love, people, work, shopping, internet. I love sales. The last hunt was TV's for sale form http://www.pennysaverusa.com/category/merchandise-tv-stereo-electronics-tvs/region/w-us/radius-1/. I'm think I'm a shopaholic.