Well...all of them, as that is what our ancestors did, and I might add they did it much better than we seem to be doing, perhaps because they live by their wits and relationship to the land around them.
What factors should we take into consideration?
Space seems cool in the movies, but once you get out there, it is super boring. Now for a fascinating tiny ad:
poor man's poll: would you support a kickstarter for a SKIP book?https://permies.com/t/136637/poor-man-poll-support-kickstarter