

2. Traffic lights that turn yellow before AND AFTER they turn red. This is handy for drivers because you know the light is about to turn green and can get ready to go (especially here, where pretty much everyone drives a standard). It is also nice for pedestrians because if the light hasn't turned yellow you know you have enough time to get across before the traffic will be moving.
3. Cell phones numbers that have a different "area code." If the first digit of a phone number is a 7, you can rest assured that it is a cell phone number. Knowing which numbers belong to mobiles means you always know when you can send a text and if you will be paying for the call.
I'm sure there are more I'm not thinking of at the moment, so watch this space...
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