If we look at it practically live after the end should be:
Self - sustaining (no more fossil fuel?)
Non - polluting (no plastics or dangerous chemicals)
Non- toxic (no pesticides.)
Now if there is a millenium I presume that the earth would need to undergo changes to make it like the garden of eden (I think that's right) so maybe pesticides won't be required.
Of all the lifestyles ever chosen by people possibly the hardest but most self sustaining is an agrarian based community with large extended families working together. Maybe this is what will be required? Most of what we do today is entertainment based or consumption based. Even our mode of transport is a trade off between consumption / entertainment and utility. I think our entire culture of consume , make money, consume, throw away, comsume etc.. will cease.
I look forward to a simpler life, slower, more thoughful and gentle - if not for me for my children or their children ..