If you have not yet made a date jar, use a mason jar and 12 crafts sticks. Each of you take six crafts sticks and write on them dates you’d like to do then stick them in the jar. Pull one out without looking and go on that date.
If you have not previously made a date not jar, take twelve slips of paper and on each slip, write one date night activity. Place all 12 in the jar and each month, pull one slip out and do that activity. If you’re creative, have fun decorating your jar any way you like.