Great episode on Slackware, thanks.

I have written a guide on the post-install process here:
https://slackermedia.info/handbook/doku.php?id=user

I should probably go to the Slack wiki and merge it into the official docs, but I'm not sure what the protocol is for total re-writes of someone else's content. Anyway, it's available in the Slackermedia handbook, and covers most of the absolute necessary tasks as well as some GUI customisations.