Graham's Hierarchy of Disagreement - A triangular graphic representing a "hierarchy of disagreement" from clear refutation to mere vituperation, based on the essay "How to Disagree" by Paul Graham. Graphic by CreateDebate user Loudacris (CC).
The Garden Igloo Kit. in a few different versions. could be a greenhouse +/or alternative to tent accommodations to house a few more summer retreatants. not particularly cost effective though, in my humble view.