A couple months back, I noticed a small-but-consistent leak on one of my tires. Took it to the Tire Place, who duly noted the issue, then dismounted + tanked the wheel to diagnose
Took 'em a while . . . but they found a small, v slow leak coming from the inside sidewall, a few millimeters outside of the rim. I asked about a repair --- 'sidewall? = f*ck no' . . . and was offered a prorated replacement. I'm about 40k mi into this set of tires, and I wasn't about to replace just one, so I thanked 'em for their trouble and resolved to just air-up as required. Car has TPMS, sooo . . .
Well, after about a week of checking on + stressing over 5 lbs of air pressure, I did some searching for a cordless portable tire inflator
(Yeah --- it's a thing . . . and there are a TON of 'em!)
Anyway, I settled on this little gizmo. Not the smallest, quietest, or cheapest, but claims it'll pump up to 75 psi (as if I'll ever need that). Can be digitally set to deliver a certain pressure, but I prefer to check/verify with my analog gauge. Comes with attachments for bikes and balls. Even has a cord to plug into a dash receptical
So, now I take a few minutes on Sunday evenings to check the pressures, then air-up as required --- usually only a few pounds + maybe 20 seconds/tire?. Oddly satisfying. Costs ~$100 including the charger . . .
. . . and is now part of my 'go-bag'
.........