We had our marriage blessed this year after 19 years of marriage. We did it on a Saturday afternoon (@3:30) in the chapel at our church, invited 10 other couples (our closest friends) and family. Our priest assisted us with selecting scripture readings, we asked our music director to play (he has a small electronic piano) and sing (he selected the music), I sent out invitations and everyone came! It was a beautiful ceremony, our priest gave a lovely homily, and there was not a single dry eye. My best friend and witness read the first two scriptures. Our music director sang the psalm (103 has beautiful words) . I bought a new dress (business suit) and my husband bought a new suit. We had a dinner party for our reception at 6:30 and invited all the guests as well as our priest. It was a glorious and meaningful day, much more so than our first wedding which was performed by a JP. Our married friends, most of whom are not Catholic, all were moved by the scriptures, the psalm (103) and the meaning of marriage.
I highly recommend you make it special!