Read somewhere walking clears your head better than sitting.

That line about paying attention for once hits home. I did the same thing last year, started writing totals in my phone notes after a store kept ringing stuff up wrong, and my trips dropped about $30 a week just from noticing what I was actually buying. The app coupons are real but you have to clip them before you walk in the door, and half the time the savings are on stuff you were not going to buy anyway.

That gummy mess happens because the grease traps dust and then water sits right on top of it. I just hit those contacts with plain contact cleaner and let them air dry, nothing else. If it's really getting soaked, a tiny smear of silicone paste works better than dielectric grease since it won't break down like that.