Keep no secrets and avoid even the appearance of any hanky panky
Being transparent with your partner is important, because it shows you each trust one another with every detail of your lives. If you are harboring secrets, they will eventually be found out and that will spell trouble for your marriage. Keeping things clear and open prevents suspicion and jealousy. Donot do things to get a rise out of your spouse, and if someone at the office is hitting on you and wont stop, tell your boss about it and ask that one of you be transferred. If you maintain a clean appearance and an honest, open communication with your partner, you will be trusted when its truly imperative.