Sometimes a trash bin is located near the door, so I’ll use the same paper towel I used to dry my hands to open the door, hold the door open with my foot, then throw the paper towel in the bin. But these make hygiene so much easier:

Well, safer and better in the driver’s mind until they fly too close to the sun and realize following the accident that there was a puncture or that the rubber delaminated off the belt during the commute. This happened fairly regularly at the track I worked at, though that was more from folks running their slicks too long.

While not a physical radio, a Linux phone such as the Librem 5 in conjunction with an RTL-SDR dongle and external antenna may be a good candidate for a mobile software-defined radio (SDR) transceiver.

SDR frameworks such as GNUradio or REDHAWK are well-established by this point. Newer versions of REDHAWK are designed to run on CentOS/Rocky Linux, however, and they don’t (AFAIK) come with a mobile-friendly UI.

I do know that there are some web-based SDR tools in the wild. I’m not very familiar with them, their system requirements/capabilities/limitations, but they could be worth a look to jump-start a Progressive Web App for mobile devices.