Advent, Christmas, and Epiphany in the Domestic Church by the Fourniers is good. As is their website: domestic-church.com/
I have not found a great book for the advent wreath. I came up with some prayers of my own and some readings to do with the help of Google. It’s still a work in progress.
I used their book to help me come up with my Jesse tree plan. IIRC, the readings they provide are directly from the Bible, and over the heads of 5yos. But you can paraphrase or use your own ideas. I made ornaments out of shrinky dinks. I took blank shrinky dink paper, colored it purple, cut it in quarters, and drew the designs from the book on them. They shrunk up to be really cute, and we put them on our Christmas tree each day (the tree gets put up at the beginning of advent, but it stands as a Jesse tree until Christmas Eve).
The Christmas Crib is a nice tradition for kids. Set up an empty manger in your house - if your tree is up, underneath is perfect. Keep a basket of straw/hay nearby. Throughout advent, whenever your child makes a sacrifice, does a good deed, or exhibits some virtue (whatever it is you want them to be aware of and working on at that age), they can put a straw in the manger (might need to put a handful of straw depending on the size of the manger). By the end of advent, their sacrifices and goodness will have filled the manger and created a soft place for the baby Jesus to lay. We have one of the kids place the baby in the full manger on Christmas morning. Sometimes, the manger wasn’t completely filled, so on Christmas Eve after the kids have gone to bed, we fill it the rest of the way with straw. Kind of the way our feeble efforts are never enough, but God takes our offerings and makes them worthy.
We celebrate St. Nicholas’ Feast Day on Dec. 6. We honor the saint by surprising the kids in the morning with chocolate coins in their shoes.
On the feast of Our Lady of Guadelupe, we have roses in the house. You could also give out roses to people. Tomie de Paola has a great book about her.
On Gaudete Sunday, we turn the lights on our tree on for the first time. We continue to light them from that point on. They make the purple Jesse Tree ornaments sparkle nicely.
I’ve meant to, but never actually succeeded at this one: putting Candles in the windows and lighting them on the feast of St. Lucy, Dec. 13 (saints.sqpn.com/saint-lucy-of-syracuse/)
We also wait to decorate the house a la Christmas until the 4th Sunday of Advent. We have a wreath on the door, but it has a purple ribbon until Christmas Eve (when the red ribbon goes on). Some people have a tradition of putting 4 ribbons on the door wreath to correspond with the lighting of the candles of the advent wreath on their table. The nativity scenes go up, but the babies don’t go in the mangers until Christmas morning (placed ceremoniously by the children) before we open presents.
We love to sing advent songs during advent, in particular as we light the advent wreath. The two favorites are O Come O Come Emmanuel, and Rise Up Jerusalem.
For Christmas Itself, we try to keep the Christmas spirit going by playing Carols throughout the season. I try to make note of all of the feast days (there are a lot), especially the Feast of the Holy Family. We have a Christmas Candle that replaces our dinner-table advent wreath which we light throughout Christmas. I attempt a ritual similar to the advent wreath, with a short prayer and sometimes a short relevant Bible verse. Sometimes enough is enough and we just say as we light it: “Jesus Christ is the Light of the world!..Glory to God in the Highest!” My kids enjoy singing the refrain to Angels we have heard on High at the table too, all part of grace. If you start young, it won’t embarrass them to do it.
Then there is Epiphany, which we celebrate on Jan 6 at home, rather than the Sunday that the Church celebrates. Our kids get 3 small family gifts that night, and we do a house blessing, marking the doors, and singing We Three Kings.
The tree comes down after that.