I learned spreadsheeting in Lotus 1-2-3 on DOS in the early '90s. It is so fast and super powerful. I still use the 1-2-3 keystrokes in Excel to this day (an option that I'm both infinitely pleased and super shocked still exists, Microsoft actually did something right!)

If anyone out there knows how to obtain Lotus and get it running in Linux, please please let me know!

Because, not to put too fine a point on it, sc, sc-im and oleo are completely useless without months of self-training, and even then... meh.