[ianpurton]

I started out with LinkWords http://www.linkwordlanguages.com/

Basically using a memeory technique to associate the foreign word with the german.

In the end I stopped using their software as it isn't so great and created my own spreadsheet with the word, foreign word and memory link. I then loaded this into some flashcard software on android. Then several times a day I would try to keep on top of my flaschards. After around 6 months I had gotten through the cards and was getting a reasonable recall rate.