Practicing Lamrim I've realized the Tibetans aren't big on Vipassana. (Cool, I hate Vipassana.)
Here's a typical meditation session.
Start off with some breath meditation to polish the mind.
Go into prayers to enlightened beings to ask for their blessings and empowerments, confess non virtues and vow to fix it, and strengthen bodhicitta.
Use analytical meditation on one of the 21 meditations until a strong feeling arises.
Use single pointed meditation on that feeling that arises.
Dedicate the merit gained from the meditation to enlightenment for the good of all beings.
Ask for blessings and empowerments of enlightened ones.