When you're out and about and need to check your email with your WiFi enabled laptop, wouldn't it be great if you didn't have to turn your laptop on to see if you are within range of a wireless hotspot?
I've come across a couple of solutions to that problem recently.
The first solution is to buy a 23 GBP PCTel WiFi Seeker. It's a small keychain based device that can detect IEEE 802.11b or 802.11g wireless networks within 300ft.
The other solution is a service by totalhotspots.com. You simply text HOTSPOT to their text number and they tell you the nearest wireless hotspot. The service costs 1 GBP per successful search.
PCTel WiFi Seeker