Locking the empty folder is working for me, too, so far. (I totally forgot to look at the "Reset" pane, but, under any circumstances, I find it too cumbersome to work with.)
Don't you think it's kind of odd that a cache that can grow to a humongous size is more or less shrouded in secrecy?
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire