There are plenty of file sharing sites out there, but many of the more prominent contenders have a complicated interface or tricksy payment plans. Fyels is about as minimal a sharing site as you can imagine: drag a file onto the page, wait for it to upload, and you get a short link you can share with whoever you like.
That's literally all there is to it, but really, what else do you want a file sharing site to actually do? There are currently no limits to the number of files you can upload, though there's a 2GB size limit (thanks to commenters for pointing this out). If you're after a basic file-sharing service, this seems like a good option to bookmark.