W3School has this code snippet for doing Checkboxes

<input type="checkbox" name="vehicle" value="Bike">I have a bike<br /> <input type="checkbox" name="vehicle" value="Car">I have a car

The result is like this
I have a bike
I have a car

Problem is, people have to specifically click on the checkbox. Lazy people like me would like little cursor movement as possible. Use of labels[1] is important.

<label><input type="checkbox" name="vehicle" value="Bike" id="bike">I have a bike</label><br /> <label><input type="checkbox" name="vehicle" value="Car">I have a car</label>

Now that I added label tags, click on the label and the checkbox gets activated. Same applies for Radio buttons

I have a bike
I have a car