I don't find it at all necessary to keep up with the feed on my circle. I usually will quickly check "my shop" first to see if my shop or items were included in any activity, and then click back to "all feed" and scan through a page or two quickly.
What shows up in your circle feed that is visible to others is: items, shops or treasuries you've favorited, and treasuries you've created.
There are a couple of shops in my circle that create amazing treasuries, and I always enjoy seeing those. Since I admit I don't spend much time browsing through Etsy, seeing what other people favorite and curate in treasuries has been the easiest way for me to find awesome items and shops to favorite.
A suggestion: if someone includes your item in a treasury, add it to your favorites. That way, it will show up in your circle feed and will get more exposure (both your item and the treasury - a win-win). Most people don't do this, which is unfortunate.