Copies of Travel Documents
The last thing most people want to do when packing is scan and print or photocopy their passport and other important documents. However, in the unlikely but serious event that your passport or visa is lost or stolen, it's a big help to have an extra copy on hand. Stash the copies in a separate place from the actual documents, so if you lose one, you'll likely still have the other. At the very least, write down your passport number and email it to yourself or simply email the scans of the documents. Losing your passport is panic-inducing and can potentially ruin a vacation, so this is one of those times when it pays to take a few extra just-in-case steps.