I use D7. My site is being hosted on a "Shared" Server at Siteground.com. My site doesn't have any CSS/JS aggregation what so ever (see attachment), and I'm sick and tired of clearing the cache after the smallest of the CSS changes.
Many people told me that installing Devel and enabling "Rebuild the theme registry on every page load" should solve the problem, and will let me see the CSS changes after a refresh (F5/ctrl+r/ctrl+f5), but the fact is that even after I did that and enabled the Theme registry rebuilding option, I still have to clear caches to see the CSS changes, so I'm still stuck with this, and it's indeed frustrating!.
So, why would "Rebuild the theme registry on every page load" won't work? Why do I still need to flush all caches to see the CSS changes?