My coaches always say these little things like receiving a ball to the correct foot is what changes the game, those little things all add up to keeping possession in a high pressured game. Once I got a new coach the first thing she taught us was to open up with your foot where you can see the whole field. This concept is very simple yet improves your game greatly.
Here is an example of opening up with the correct foot when you get played a ball to the wrong foot.
This will improve your game greatly. By opening up you can see the whole field and open your hips to the field.
What is an example of a little thing that makes a difference in another sport?