Reclaim some pocket space by turning your idevice into a USB flash drive (Halloween Special)

Yes I know that they're are many "USB flash drive apps" in the AppStore but they all require you to open iTunes on your computer in order to save files,

BUT what if on one unfortunate day.
You need to save a file and that particular computer you are using does not have an Internet connection or iTunes installed.
What do you do?

I suggest having this app installed if you have a lot of memory

Open Cydia
Add this source repo.insanelyi.com
Respring
Search for USB Drive and install
Open the app
Tap on the "Drive + iTunes button"
And reboot
Open the app and create the disk
Then choose the amount of memory you want to use.
And you're all set to go.