Autocomplete tags in search box
When I want to search for tags I have to guess the precise tag names. OK, I know the most imporant ones to me, but not the others. It would be nice to have search somehow equipped with this nice autocompletion as it is offered when tagging or retagging a question. This autocompletion is so useful! It also shows the popularity of the tags and an explanation of them.
What I do currently is to open a question just to enter words in the tags section to get the tags I want.