Hmm, I paid under $10 for my son's umbrella stroller. I wonder if I should buy a $15 bag to keep it safer in transit.

in addition to strollers, this looks big enough to hold pets that don't fit under the set, screaming children, etc
<kidding>

Made me think of this topic: even before they discontinued the plastic bags there was a bit of a discussion after someone here requested and was refused a free bag