I still occasionally use 1.44MB floppies at work on some of our oldest control systems for transferring small blocks of code I've modified. These systems don't have Windows/USB (they're typically early to mid-1980s systems, mostly due for retirement in the near future...or probably the not so recent past if I'm realistic...).
Alternatively I can transfer these code blocks using a laptop and a serial cable, but it's much quicker using a floppy than firing up a computer, finding the lead, remembering the MS-DOS commands etc.
Floppies are pretty much useless for everything else though.