Re reminding your hubby, buy or print out those calenders by month, put on a clip board or magnetic strip and stick it on the fridge or some place where he'll see it all the time! Your whiteboard idea is good as well! I used to do the calender thing in Switzerland when I was preggers and needed to record down appointments and such.
Re differences between hubby and wife, well, every couple and individual is different. I cannot expect my hubby to be like me and vice-versa. Although our education level is the same, he is more skilled in certain things than I am - world history, politics, math, scientific stuff - and I am more skilled in things than he is - language (English), cooking, childcare stuff, crafts, etc. He is not my superior but rather someone who complements me. dont't you think that it's better than looking at him as a role model (he cannot do any wrong, etc, etc, must lead the way, etc, etc)? For me, I've always felt that role models have reached their peak and dont't need to grow any more but I dont't want that for my marriage because I want our relationship and us to grow as well. And in order to grow, he must be around my level with faults and good points of his own.