DH and I have been married for 17 yrs and together for over 20. We have always kept finances separate and since I tanked my credit in my early 20's I was never on any of his high limit cards that he got right out of high school. Fast forward to a year and a half ago, finally got a huge promotion at work and was able to zero my two cards that I had been making min payments on for the last 9 yrs.
After I showed my zero balance statements to him I got him to add me as an AU on his card. I told him I didn't want a card I just wanted to take advantage of his stellar credit history. Within 6 months my score has jumped almost 200 points which is great as I am going to get myself a new car. We have discussed this and looked at my financial responsibilities and think this is a smart move because with my new job I do have to travel a bit more than before so my 1979 Chevy C10 isn't the most efficient truck to drive 4 hrs one way.
I have my girlfriend added to 2 my oldest...We havent had any issues...yet lol. Probably because I locked them up!