Here’s a tip I forgot to include in the Safari 5 tips roundup.

If you accidentally close a tab in Safari 5, you can just press Command-Z or choose “Undo Close Tab” from the Edit menu. This is fast becoming one of my favourite new features in Safari 5, and I use it all the time. Unfortunately it only works with the last closed tab, not the last closed window, but I guess things would start to get complicated if it did both.