sac skill level up question

ok, there is a ton of just high end advice out here, and it assumes you know a bunch already but I cant find something just simple for the new guy/gal

from what I see, putting single skills together up to 5 is like 7 to 10 single actions done.

then people are making +4 skill cards to put into +5 skill or higher cards ?

I think someone should make a small simple sac guide for new people to get stickied up

thanks