According to the proverb, it's what a "stitch in time" does
[DOC] [TLE] stitch in time saves nine, a - Dictionary definition of stitch in time ... [PAR] stitch in time saves nine, a proverbial saying, early 18th century; meaning that a 
small but timely intervention will ensure against the need for much more... [DOC] [TLE] Can anyone explain the phrase "A stitch in time saves nine" to me ... [PAR] I never understood this phrase, what it means, what it's trying to say, nada.