I put new items up for auction. Some are fixed priced, others at low minimum bid auction. If they sell great. If not, I relist once and see how it goes. If it still doesn't sell, it goes right into my eBay store for a 3¢ listing for 30days. That saves some money!
Every so often I run a sale on my store inventory, save 20% off the whole store and that gets a lot more sales!