What is the Little Office of Our Lady in connection to the Scapular Devotion? This is particularly confusing and the wikipedia entry is not helpful.  I've worn a scapular since going to World Youth Day in 2005, but I've never asked a priest to consecrate my devotion.  The reason is, I don't know what the "Little Office of Our Lady" is in connection with the Scapular, it appears to be both a psalter (a book that repeats a lot) or 3 Hail Marys to pray daily.

Hail Mary's I can handle, another prayer book would be a stretch and I'd rather just pray the Liturgy of the Hours.

In the Handbook of Prayers, which contains the rite of consecration, it says that the devotion requires devotees to pray the Little Office of Our Lady daily, but it doesn't specifically say what it is and I've heard priests say it's just 3 Hail Marys.  Some times these devotions let distracted laymen like myself off the hook easy, so maybe it's both.  But if I had a definite answer I'd be a happy dude.
The Brown Scapular devotion is one thing, and the Little Office of Our Lady another. To practise the Brown Scapular devotion, and benefit from Our Lady's magnificent promise, one must be enrolled in the Scapular by a priest and persevere in wearing it. On this website you will see the difference between the Scapular promise and the Sabbatine Privilege. It is with regard to the latter that the condition of praying the Little Office comes in as one of several possibilities, including abstaining from meat on Wednesdays, Fridays and Saturdays.

By far the most common way to gain the Sabbatine Privilege, however, is to have that condition commuted (changed) to praying the Holy Rosary daily - that is to say, the five decades we all should pray daily anyhow - by your confessor. So I hope that you will now become enrolled in the Brown Scapular without worrying about taking on the added burden of the Little Office.

God bless you, a Catholic Priest.