Many people will recognise this: sometimes you just need reader to open invoices, web documents, etc. Sometimes you work with Acrobat a lot. Now you can switch the default program to open pdf's every time, but that's a hassle. Why isn't there (as far as I can see and I googled quite some time) a button in Reader that says: "Open this document in Acrobat"? I guess this would save millions of people a lot of hassle.
Its eems so obvious that I cannot imagine another request has been made for this, but I couldn't find it, so here it is. If I overlooked something, please point it out.