May has been one of my best months all year so far. It's really not too complex. I can tell you what my "secret" is, and I often post it on the forums, but it takes a lot of dedication and effort, so it's not for everyone.
1) Try to list at least 10-20 new items daily. This doesn't include re-lists. When I list 20 or so items daily, I notice that my other items will magically start selling. Some speculate that this phenomenon happens because it brings in more traffic, but, I've literally had days where I'd go on a 50+ item binging spree and would have 2-3 items sell that very day or the following day that have been collecting dust in my store for over two years, so... I find some correlation. I'm not the only one who notices that listing daily improves everything. I've heard of people having success with as little as five new listings per day. But it has to be constant. Whenever I get sick and stop listing my usual 10-20 new items per day (I'll sometimes list up to 50 items per day, rarely), I notice that sales slow when I'm sick or too busy to keep listing daily.
2) Selling in a niche or overly saturated category will slow down sales, especially during times when certain things are off-season or when people are more out and about and less likely to do their shopping for such things online.
3) Unfortunately, a lot of the people that I see struggling with sales sometimes don't have a lot of things listed. It's even slower for those that have below 200 listings + sell in a very niche category / overly saturated category. If you REALLY want to start making lots of sales, I'd list 20 new items daily until you hit 1,000 listings, if your limit permits it. If not, you can always call and ask for an increase.
Following all three steps is how I manage to do very well on here. It takes hard work, though. I have a full time job, though, on top of my Ebay business and I still manage to find a lot of free time. I usually crank out 20 new listings at the start of each day and try to punch them out as quickly as I can. Nowadays, I can manage to photograph and list 20 new things within an hour - hour and a half. Then, as the day goes by, I notice that some of my newer things will sell and so will some of my older things. If I'm in a binge listing mood, I'll aim for 30-40 listings on a particular day, sometimes 50, and that'll really boost EVERYTHING as far as sales go. I've just become very quick with my whole process so listing and photographing that much shouldn't take more than a few hours for me. But yeah, those are some tips, which I know are not for everyone, but it works for me.
