A collection of cleaning supplies means you lean to the right One study published in The Journal of Political Psychologyfound that subjects who identified as conservatives tended to be extremely clean, had a lot of well-lit rooms, and owned large collections of cleaning supplies and sports memorabilia. “Conservatives have a need for order, for there not to be ambiguity,” study author Dana Carney told Scientific American. “There you see that expressed by being more orderly, having more cleaning supplies, needing to have everything lined up and organized so that one feels one’s environment is predictable and therefore safe.”