I've used this spell to discreetly read documents in a pile without moving them or even being able to find all parts of them. I've also used it to read letters within sealed envelopes while they were held by another person. I've searched enemies for concealed weapons and other items whilst keeping my distance. It can also be used to find and/or set off certain traps while keeping one's distance.
You try reading a book without opening it, a letter in an envelope without unwrapping it, or a page at the bottom of a stack of papers without physically shuffling through it.