I agree with you on the part that European countries are so much connected which make it easier for tourist to visit as many countries as possible with the visa of one country in Europe would afford you that. It is nice see that you are traveling to celebrate your wedding anniversary. It is a thing of joy that one should strive to do without breaking bank.
I'm sure you are going to have a lot of fun and since you didn't go with yoir daughter nothing will stop the fun. Do enjoy your trips and i bid your safe trip back home.