Cap Connections

Hi All,
         despite the imminent completion of my second mmc I would like a go 
At donign it the old fashioned way. I wondered what the prefered means of 
connection to the end of the foil on a rolled cap is.  As Al is impossible to 
solder to and almost as hard to weld to I am a bit stumped.  Do I just clamp 
it hard or what?   I have read of the  gary lau 'extended foil' design but 
cannot get wide enough foil for this.

Perplexed In GB
Nick Field