Crunky, creaky clicky help please.

Hello CPF,

I have a couple of rear clicky lights that have switches that make creaking noises and feel rough when engaging the switch. I'll call it 'crunky'.

The switches work fine, but feel dirty or unrefined on the inside.

Is there an easy layman's way to make crunky switches work more smoothly?

Here are the lights that are affected:

*BLF A6 (bought about a month or 2 ago)
*ThruNite TC12 (couple of months old)

I'm not a light modder (though I'm beginning to understand a lot more of the lingo and electrical concepts by hanging out here on CPF!), but think this is something I may be able to take on.

Thank you for your help!
Aldon