The song played during the ending credits is "Everyday of the Week" by The Students.
The title refers to the first words on the wedding invitation for John and Ginny's daughter, Allegra. It is also possibly a reference to John's request to his judge to be granted a leave from jail to attend his daughter's wedding. The title could also be a reference to John's request that Tony's family kill Lupertazzi capo, Rusty Millio.
Sopranos actor Louis Gross known as Perry Annunziata who plays Tony's bodyguard in this episode was arrested for fake $100 bills Louis also had reportedly been arrested in 2006 for breaking into a Queens area home.
In the beginning of the episode 5:45 into it When perry is driving, Tony Soprano on his first day back to work they stop at a stop sign perry wants to fight the drivers across from him. The camera flashes back to perry when Tony stops him as they are sitting in the car and you can see on his shoulder. there's the microphone taped to his shoulder.