I have been selling for about 9 months. Disney stuff sells pretty well. It is easiest to sell what you like or what you are interested in........ You REALLY make the best $$ on stuff you no longer want, that is laying around your house. Pure profit! It is hard to buy stuff at retail, and resell on ebay for a profit....... some people do it, I have done it here and there with some items myself.... but when you figure out your profit on those items, and the time you spent listing and shipping, it can sometimes be a break even situation. And sometimes weird stuff sells, so I try all sorts of stuff just to see.......
I would say, in my opinion, open the premiere account on Paypal. Buy a scale. Download and use Turbolister program(free from Ebay). And FIRST before selling, go to USPS site, and order priority boxes in every size they have (FREE). Let the post office pick up those packages (free) at your front door; you will print out the postage yourself on your computer. Let friends and relatives know you will accept used boxes, bubble wrap, and peanuts. In your listings, watch your keywords; they are the way for buyers to find your listings. I also have nothing up this week, but last week I did. I am so busy now, with my real job and family, I sometimes list one week, ship the next, etc.
HAVE FUN! (ebay name is dznynutty)