Stupid eBay tricks
I don’t remember when I bookmarked this URL, and I don’t know how long this has been a problem or how long it will last (presumably not very long if word gets around), but I hereby present for your amusement the Magical Endlessly Redirecting eBay URL:
http://cgi1.ebay.com/aw-cgi/eBayISAPI.dll?MyEbayLogin
(You have to be signed in to see the MAGIC. Also, it’s only theoretically endless – your browser will eventually give up.)