On Tue, 14 Apr 2009 13:02:42 +0100, Timothy Murphy wrote:

What is the best way to set up a system
for watering a garden every 2 or 3 days, say?
Can one buy devices that do this?

You can marry them!

--
The Wanderer

Computers are incredibly fast, accurate, and stupid;
humans are incredibly slow, inaccurate and brilliant;
together they are powerful beyond imagination. ¡X Albert Einstein