[tdeck]

Snail mail has started to break down in the USA. I remember when I was a child letters always took 3 days to be delivered. Now I've sent letters to family members that took more than a week to arrive. I imagine that makes it hard for a candidate to plan or align interviews.

[SoftTalker]

Send it registered, then it has tracking. Only costs slightly more.

[tdeck]

As far as I can tell it costs almost 10 times as much to send a letter certified mail (or any other option with tracking). And it means I can't just use a regular stamp, I have to go to the post office or use a third party service like stamps.com and print out a label.