Set search scope from the search box
It'd be handy for users to be able to change the scope of searches conveniently before submitting a query (e.g. a drop-down option in the search box to toggle between Search | Search this site | Search [within this Document Library])
..and please enable us to set a default scope for this. Use Case is a single topic document collection where I want users to be able to search only this site/this document library because I don't care about other content elsewhere on the company intranet.