I know how you feel about the space taken up by eBay items. Those little sales make the PayPal account grow, though, so I don't begrudge them. I have things on the dining table that I meant to list a while ago because the sun room where I usually keep the eBay activity was a bit full of cardboard (must thin) and a few gardening items. There is a domino effect, as eBay stuff moves out of either part of the house I can compress it back down to occupy just one room.

If you use one browser consistently for your mudcat account you shouldn't have to worry about logging in and out. If you're posting above the line, use any browser, if you're posting below the line, use the one that is logged in. If you use one like Chrome or Firefox you can log on to that browser and let the sites you link to stay logged in via that browser across machines.