Grouping and Sorting CSS properties can make your CSS easier to read and helps with consistency in a team environment. There is no correct answer but something is better than nothing.
Code is written to be read by humans, not machines. Naming conventions and standard code styling can boost productivity, particularly if working in teams.
Reactive Extensions (Rx) Advantages of using IObservable property naming conventions and comparison between C# events.
StyleCop analyzes C# source code to enforce a set of style and consistency rules. Rehan advocates its use in this thought provoking article.