Originally Posted by closer

Any website that does not do / offer what you expect from it = close tab

- audio
- non-essential javascripts ("do you really want to leave?")
- wrong design choices
- sherlock holmes UI
- load time
- blind links
- banner / link farms
- having to logon multiple times / short session times
- DHTML ads you need to click away before you can see the content
- sites that want my underwear size before I can get to view something