Extra money
At the start of the game, leave Lord British's Castle
and go to Iolio's Bows (in Britain) and sell everything that you
own. Go next door to the Items salesman and purchase as much oil
as you can carry. Sell them at Iolio's Bows. If a single character
holds two loads of oil (99 + 99) and sells it all, it will result
in 350,000 gold crowns.