My Yes is My Yes and My No is My No.

Do exactly what you say you're going to do every time. You build a reputation of consistency. Someone once told me that they operate soley on consistency of their word- they took such a dogmatic stance on the issue even so much so that they were short on patience with people who weren't as committed to their words. Let me say this: when you set a high bar for people, you better be perfect because it will bite you so hard in the rear end if you're not. When you are true to your word, you bring honor to yourself. Honoring our word also shows respect to those whom we've made promises to.