There are three ways to make a decision when the two of you don’t agree. After hearing each others’ ideas and desires you may decide to ‘meet each other in the middle’. That is you each give up something, in order to reach a solution. Second, you might ‘agree to disagree.’ Since we can’t agree, we just give each other the freedom to ‘do it your way.’” This works well with the toothpaste battle. You get two tubes, and let one be a middle squeezer and the other a bottom squeezer.
The third possibility is for one of you to say, “I think that this time, I should do what you’re asking. I see how important it is to you and I’m willing to do it cheerfully.” Each of these requires understanding, loving attitudes, and a willingness to change.