How do you guys do it if you want to level up multiple skills for a sim?

usually one skill at time if there is something I really need to teach my sim
though I usually only max more than 1 or 2 skills on my older sims that got kids
and so I can do the family aspiration and have their kids practice things in same room as them
which allows them to learn like 3 skills at once only practicing one of them ;)