Marwan Marouf talks about how the small things (good and bad) sometimes have a much larger impact than we may think.
What I've learnt is that Taqwah means that we should constantly be watchful of Allah SWT. When we sin, we do not look at how minute the sin is, rather we look at the fact that we have sinned againts our Creator, the Maginificent! Vice versa, when we do hasanah or good deeds, we are dealing with the Al Karim, Al Syakur, Al Khaliq. We have 2 choices - the good or better deed; the bad deed is never an option for the true Muslim.