(Also, better than memorizing Unicode character codes, if you have a US keyboard, you could sett t to "US International" or its equivalent for your OS.)

I don't think my father would have liked that 10 years back when he had an American keyboard for making programming a bit easier and I was allowed to use his computer for accessing the net every two days for an hour :D

I still know the codes, though. 132 was ä, 148 was ö, 149 was ü and either 225 or 255 was ß :)