When you try to find a way out of a commitment you're really not looking forward to, bringing up the fact that your schedule is already packed is a  justifiable reason.

If you want to cushion the blow a little more, preface this statement with an, “I’d love to, but…”. 

This will allow you to politely shut down a person's request without brutally closing the door entirely.

It works especially well for social obligations.

If and when you don’t want to do something, reply with a simple, “No, thank you.”

Sometimes, trying to offer an explanation of your refusal will open the door for arguments and maybe even for a future similar invitation. By offering this answer, you’ve made it clear that you’re not i...