It's one of my favorite games of all time. But choose a wrong setup and you're screwed. Don't get anything before heading out you're dead. Attack a peasant, dead. Go in that cave, dead. Get winded before doing anything, dead and frustrated.
Brew a bunch of Fortify Intelligence potions, drink them, brew some more, repeat. Later make Fortify Strength potion, gives 1000+ strength for over an hour, one hit kill everyone.
If I recall correctly you meet a guy who did that with agility (or was it acrobatics?) just after leaving Seyda Neen. It didn't end well for him.
(Also, I haven't played that damn game in probably over two decades; how the fuck do I still remember that town's name..? How the fuck do I still remember Fargoth..!?)
Scroll of Icarian Flight. It boosted acrobatics. AFAIK, there's no way to make a spell or potion boosting a skill, just the 10 attributes. So the few jumping scrolls are all that you can get.
Also, a note about unexpected consequences. Boosting your strength to ridiculous proportions can cause your weapons to basically explode after one hit.
Not the same thing. Abusing rules (or code bugs) is "cheating legally". You can also make a spell that does Soul Trap to self + fortify attribute and said attribute will be permanently fortified.