OG Party Suit Wearer
Will try the vinegar tip. There is always some dirt on the nose cushions though. Unless you get somebody to switch them out for new ones every now and again.
I have a small el cheapo "Watch Repair Kit" - the screw drivers are great for fixing/tightening spectacle frames etc. Just take the pads off and clean them. All my friends get me to do theirs. Most people have a screw loose somewhere ! - I have a supply of new nose pads. Also frame screws. Order stuff online from HK or China
Another tip - if your frame screws are coming loose then put a bit of clear nail polish on them when you tighten them up and it will stop them coming loose.