It would be nice to see measurements on how much less time and memory the more performant techniques take compared to their less performant counterparts in real

It would be nice to see measurements on how much less time and memory the more performant techniques take compared to their less performant counterparts in realistic scenarios. Doing so might indicate a better ranking of the tips given. For example, the DOM insertion tip -- which drastically improves performance over the naive implementation -- is tip 9, and is probably far more useful than tips 4 (Optimize selectors for Sizzle’s ‘right to left’ model) and 5 (Use find() rather than context).