I'd like to try tarp camping. 3m x 3m (9ft x 9ft) and 3m x 4m (9ft x 12ft) tarps of differing material are plentiful and many are even affordable. Which tarp shape is more versatile in the number of setup configurations?
Configurations should include a simple roof, lean-to-type or a fully enclosed tent-like structures. All weather conditions should be considered also.
I know there are other shapes but they seem to be intended for specialized configurations.
So Square or Rectangle?