When you connect to LUapps using the Citrix Receiver (or Workspace) client, you are in fact connecting to a particular application running on a virtual machine on a server in the Computing Center. That kind of an arrangement can cause some confusion regarding important questions like: 'How do I get to the files I want to work on?' and 'Where do they get saved when I'm done?'.
What you see when you go to open or save a file will vary based on several factors including the app you're using, the kind of device you're connecting with, your role at Lehigh, and what services you've activated. Either way, you might see a file system that you're not used to navigating. All of the apps in LUapps use some version of Windows dialog boxes, but even so, not all apps use the same ones. The different dialog boxes offer different features for sorting through your options. As well, some storage options that the system presents shouldn't be used at all.
Refer to the annotated screenshots below for some key hints (click to enlarge):
Lehigh LAN Storage
First, you'll always see the 'Documents' and 'Desktop' folders from the VM itself. When in doubt, save things there. The LUapps system maps both of those to corresponding folders inside the 'VirtualFiles' folder in your Lehigh H: drive, which is backed up, and accessible from on-campus or over the internet. They're also in dark green, since they're mapped to your H: drive.
Note that LUapps will also map standard Lehigh network drives to the virtual machine, depending on your role at Lehigh, like the H: Drive (personal LAN storage for everyone), the I: Drive (departmental LAN storage for faculty and staff), the R: Drive (personal storage for faculty). These all have the 'Network Drive' icon. They'll appear no matter what kind of client device you're using. Note that if you're connecting from a Lehigh-owned PC or Mac, these will likely show up twice in the list, since the client computer has them too. They're shown above, and indicated in dark green.
Remember NOT to save files into the 'Downloads', 'Pictures', 'Music', or 'Videos' folders. These folders are NOT mapped to any permanent storage resource, and files stored there will disappear when you log out.
Additionally, LUapps provides access to cloud storage services via KUMO, so that your cloud storage drives will also appear in LUapps. These will have different drive letters, depending on where you're connecting from and who you are. They will also have icons and titles identifying them as your Lehigh Google Drive, or Lehigh OneDrive, or mapped server drive, etc. Be aware: Kumo only maps your Google Drive. Documents that are Shared With You from other people's Drives will not be visible unless you create copies in your own Google Drive via the Web.
Local Storage (Client Drives) for Windows and macOS
If you're running the Citrix client software from a macOS or Windows computer, the LUapps system connects to the entire file system on your computer in addition to the virtual machine's drives and network drives so that you can open and save files from and to your computer. Those drives, called 'Client Drives' will show up in the virtual machine's list of drives with a note appended to their name in the format '(<drive letter> on <computer name>)'. 'Computername' will be the name of the computer you're connecting from, and the drive letters will be sequentially, and fairly arbitrarily, assigned by the Citrix system. Any kind of drive that's connected to your computer, whether it's physical or logical, will show up in the list. Your computer's internal hard drive, connected USB flash drives, mounted network drives, your Google Drive File Stream Drive, CDs, DVDs, mounted disk images, etc. They'll all appear with that appended note in parentheses, as shown in the screenshots above, designated in blue. Note that for Mac users, the letters given to those 'drives' are mostly arbitrary, except that 'C:' refers to your computer's boot disk. Remember that on your computer, your desktop and personal files are likely stored inside a folder called 'Users' inside 'C:' in a folder named according to your username on the machine.