Most votes in legislatures are done by open ballot, often by calling of the rolls. Everybody's vote is very public. Since legislators work for us, it is important we know how they vote.

As vaccine approval nears, you've no doubt heard proposals to speed up vaccine testing with what is known as a "challenge" trial, where you deliberately infect volunteers with the virus. This approach is controversial, but has been around for some time. There are already organizations collecting volunteers, and tens of thousands have signed up.

It occurred to me, learning that 80% of Covid infected patients lose their sense of smell (Anosmia) that it should be possible to build the cheapest and most effective Covid screener (for use at entrances to schools/airports/buildings/restaurants) with a simple "scratch-n-sniff" card. These cards, which cost pennies, would come with a set of scratch squares, and under each would be boxes with the names of possible scents. A QR code would (encrypted) have the answer. You sniff, check the boxes and then a phone or other device scans your answer.