All my archery equipment is downstairs in my unfinished basement; I took two rubber-coated "S" hooks and screwed them into my floor joists a couple feet apart, then hang the bow by the string over the hooks. I'm not worried about this stressing or stretching the string as each hook is less than a quarter-inch from either the cam or the idler.

If you were worried about such a thing, you could just hang it on the hook by the idler, and let the bow hang down naturally.