Ask HN: What are the websites that you rely on but have horrible UI?

I love travelling and use Wotif.com a lot to find great hotel deals. The things is, Wotif has horrible user interface. For example, if you go to its homepage, you need to do multiple scrolling to select your destination on a country list with the size of 1 inch. Another example is airline websites, but thankfully this has been solved with Hipmunk (yay!).

So I'm asking you guys here if you share any frustrations with me on the websites that have really bad UI but we need to use it anyway. I hope this post will inspire these companies to either fix their UI, or more likely, somebody starts something better to replace them.

Thank you.