  I review the roles of jet-inflated bubbles in determining the evolution of
different astrophysical objects. I discuss astrophysical systems where jets are
known to inflate bubbles (cooling flow [CF] clusters; young galaxies;
intermediate luminosity optical transients [ILOTs]; bipolar planetary nebulae
[PNe]), and systems that are speculated to have jet-inflated bubbles (core
collapse supernovae [CCSNe]; common envelope evolution [CEE]; grazing envelope
evolution [GEE]). The jets in many of these cases act through a negative jet
feedback mechanism (JFM). I discuss the outcomes when the JFM fizzle, or does
not work at all. According to this perspective, some very interesting and
energetic events owe their existence to the failure of the JFM, including
stellar black holes, gamma ray bursts, and type Ia supernovae.
