How to loan my iPad while preserving personal data? I would like to loan my iPad Air (iOS 8.3) to a friend and give him a clean device (without my apps and any personal data). After getting my iPad back, I would like to restore the whole configuration and have all my data again. What is the preferred procedure to do it? 

Probably here's what I should do at the beginning:


Backup the device to a PC computer using iTunes
Erase the device according to the guide here: https://support.apple.com/kb/HT201351 (sign out of iCloud and erase all content).


But what then? My friend should create his own iCloud account and use it to configure the device? And if I want the iPad back, then I should erase it again and restore the backup from my computer? Will it work?
Yes, when you're friend is done using it, have him sign out of iCloud and then erase the iPad again. You will be asked if you want to restore from a backup while your are setting the iPad up again after the erase.