You can use Google to set a timer. Simply google the amount of time you want to set and include the word 'timer' at the end. A countdown will come up and you can set it to make a sound when the set time has elapsed.

On a night out with a group of friends, you've all ordered your meals and eaten to your heart's content. Now it's time to pay the bill. Rather than struggle to calculate the amount each person is going to pay, you can simply google 'tip calculator'. You enter the cost of the bill and the number of people to pay for it. It'll give you the cost for each person. If you want to add a tip for the waiter to the cost, you can include the percentage of the tip you want to give or you can just set the 'tip %' at 0% if you don't want to give a tip.

Especially when using your Gmail to register or sign up to certain websites, you can add "+anything" to your email address, this will create a folder that all emails from that site will go to automatically. This will help you keep your Gmail in order and avoid irrelevant emails mixing up with the relevant ones. The format for this is your email+websitename@gmail.com e.g david.michael+kamdora@gmail.com.