One thing I dislike is people sending one documents over Slack. Slack and similar are a terrible document storage systems. Here e-mail is definitely better.

One thing I dislike is people sending one documents over Slack. Slack and similar are a terrible document storage systems. Here e-mail is definitely better. But when people get to used to Slack and its ilk, they start to send documents via the same channel, when it probably should have been by e-mail. E-mail lets me take my time, IM does not. I am not usually able to look at documents sent me instantly, I will do so when I have the time. So when someone sends me a document via Slack, I usually tell them to e-mail it instead. Or - when it's a repeat offender - I ignore until they inquiry about whether I've read the document.