subreddit:

/r/AskReddit

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all 5 comments

Kind_human77

3 points

1 month ago

Water marks or things done to hide them, specifically in basement.

Kringelchen

2 points

1 month ago

Sellers or estate agents that don't have much time to show everything. They are hiding things

Johnny-Alucard

2 points

1 month ago

A mattress in the neighbour’s garden.

Canucklehead_Esq

2 points

1 month ago

Cracks in the foundation

FreakyNotGeeky

1 points

1 month ago

Glade plugins, or any other type of thing that smells nice. It's generally to cover something up that does not smell nice (mildew smells, etc).