What are others afraid to repair that is really not that bad?

[Demetrios Kalligerakis]

As you search for properties to rehab, what are the things that most people try are afraid to tackle and you think are really not that bad, hopefully leading to a better deal?  What are the things that you avoid no matter what? 

As I read through the books, there is the notion of things that people viewing homes get turned off from, smells, cleanliness, etc.  Also looking for what are some of the bigger things, i.e. foundation, mold, is/was the house on fire, etc?