“Real, Effective Apologies has three parts: (1) Acknowledge how your action affected the person; (2) say you’re sorry; (3) describe what you’re going to do to make it right or make sure it doesn’t happen again. Don’t excuse or explain.”
—Reddit, h/t Cool Tools/Recomendo.
cafebedouin.org 
:). I hate the “I’m sorry but . . .” statements
Excuses kind of undermine the whole point of apologizing in the first place…