My iPad screen has never again looked as good as the day I peeled the plastic wrapper off. My phone looks like I've taken it hiking and set it in the dirt. Which I have.
I'm not the only person with dusty and dingy electronics. That's why there's a thriving industry of electronics cleaning products. Most of these involve some sort of liquid that you spray on. The Qmadix Smudge-Free Dry-Foam Cleaning Kit dispenses with all that dampness.
The $19.99 kit comes with antimicrobial microfiber cloths, but the star of the show is the dry foam spray that comes in a little bottle. Qmadix touts the foam's smudge-resistant, dust-resistant, and anti-static properties.
Qmadix says that the kit is good for smudges, dirt, grime, and makeup--in other words, the usual suspects. The antimicrobial cloths are germaphobe-friendly and can be washed up to 50 times without losing their bacteria-killing stamina.
The 1.9 ounce dry-foam bottle can make it past the TSA. Additional bottles can be picked up for $9.99. It's more expensive than a squirt of Windex and a paper towel, but you may get some enjoyment from the paradox of cleaning your gadgets with the power of dryness.