Marriage solidified that honesty is the best policy. I can truly say I can't think of a time I have deliberately lied to my husband. Being truthful and honest has always been high on my list of priorities, but in my marriage I made it a habit. I wanted my husband to know I was trustworthy and he did.
He still didn't trust me because he wasn't trustworthy, but that's a different blog. Being honest made everything I did easier. I never had to backtrack, or try to remember a lie.
I do remember a time when my husband told me, "You're too direct."
I knew he had something to hide and hated I wasn't more deceitful like him. At the least, it would have eased some of his guilt.