A RAM card is the quickest, most portable way to back up data. You simply insert a formatted RAM card in the 95LX, and copy highlighted or tagged files to the a: drive.
There are additional ways you can use third party products to back up your files. You could use the Kermit communications software and a serial cable to back up to a PC. You could attach a portable disk drive (like the Sparcom Drive95) to the 95LX and back up directly to a floppy disk. Or you could connect a RAM card drive to your PC and transfer files from your 95LX to your PC via a RAM card. You really have lots of flexibility in choosing a back-up regime that works for you.