My sales are terribly inconsistent. It drives me crazy. I'll sell hardly anything for a few days and then I'll sell a number of items in a row. I also suspect eBay may be responsible for this although I have not noticed any change in sales when I open an Unpaid Item dispute.

I experience the exact same thing! It's so frustrating. I have found though, that sales start to dry up around the same time that ebay issue their monthly invoices. Thanks to ebay's extreme bills, people's paypal balances take a huge a hit, so they have to tighten their purse strings in order to be able afford to continue to sell on ebay. I think ebay should lower their fees for their own good, because large invoices mean less buying, which leads to less sale fees for ebay in the end. They are not doing anyone, even themselves any favours by their whopper invoices at the end of the month. I know I can't afford to buy for a couple of weeks because my bill is over $450 ridiculous dollars. Insanity.