As a saffer living in London, who still has vested financial interests back home (and very possibly the intention of moving back to SA at some point) I do keep my eye on the South African rand... It's taken a bit of a beating recently... But my technical blog is probably NOT the best place to go on about that...
A colleague showed me something very nifty in Google today (new to me!!). Try typing something like: "100 gbp in zar" into the Google search box....
More fabulously cool search type features can be found at: Google Web Search Features. Makes finding out those little bits and pieces SO much easier, from populations of countries and exchange rates to how many kilojoules that archaic imperial calorie stamped Boost bar you scoffed at lunch ACTUALLY contained....
In my book any shortcuts that make using a computer to do our bidding easier and that help save time are definite winners, wouldn't you agree?
More calculator specific instructions can be found at How to use the Google calculator.