"System" - storage at 5,71 GB. Any way to clear some?

[WPCentral Question]

Is there any way to Clear some of the "system" Storage in Windows phone 8.1 Update 2?

I have a Lumia 735 With only 500MB of Storage remaining, "on" the phone. Everything I can put on the SD-card, has been put there, but the "System"- in Storage sense is still masive!

Please help....