Make some music to listen to in the car for the drive. Stuff that you both loved when you first got together, stuff that will make you feel good and bring back the memeory of good times together. Stuff you can both sing along to.
I'd also be tempted to take some photos of you together, when you were first married, and some ones of your son as a baby. Stuff that is going to make you both feel good about things you have done together. Doing that will also give you something to focus on during these last few days and hopefully put you in the right mood.
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength
