I almost always find things go a bit quiet when I haven't initiated any activity on my account for a while - and by any, I mean pretty much everything you can do as a seller, particularly with a store. eg As mentioned, if I get in a slow patch, it often seems revising listings, updating photos, adding new items, even paying my fees, seems to kickstart things a little, though it's all rather circumstantial and could just be a matter of finding things to occupy myself until I have something else to do.