The Birthday Calculator (www.paulsadowski.com/birthday.asp). Type in the birthday and it will tell you things such as how many hours, weeks or seconds you (or someone else) is, plus birth stones, birth trees and other such oddities.
Create a Mosaic Picture made up of hundreds of little ones. Download a trial version of the EasyMosaic program at www.ezmosaic.com/. Simply provide it with a picture you want as the mosiac and then give it a list of other pictures and it does all the work for you.
Create a font using your own handwriting.Go to www.yourfonts.com and download a template, complete, scan and upload the sample of your handwriting and it does the rest. All you have to do is download and install the finished font and use it. It's also free.
Flightradar24 (www.flightradar24.com/) shows live traffic from around the world and gets the details on each flight from an automatic dependent surveillance-broadcast. It can real time track about 70% of European air traffic and 30% in the US. Simply pick the plane that interests you and you can find what type it is, the airline, flight departure and arrival airports and so on. For added geeky fun, click on the 3D (= cockpit view) and you'll see out of the cockpit window what the pilot sees, including course corrections, via Google maps (you'll need to have the Google earth plugin) .
Phil Bradley in CILIP Update (various dates)
I was always making notes on scraps of paper about tips and facts I'd read in books and magazines, seen on the Internet or on TV. So this is my paperless filing system for all those bits of information I want to access easily. (Please note: I live in the UK, so any financial or legal information relates only to the UK.)