post away Hels. someone at work said they bought a few scones from the bakery near their house and put them in the oven and rewarmed them prior to house opens. to give that baking smell. i used a tiny ( i mean tiny) bit of vanilla extract on a damp cloth and wiped along cupboard shelving in the kitchen. ( you'd have to experiment to make sure it wasn't too strong0
our agent told us to put a little bit of colour in the garden. we had lots of green. but our place was marketed as a family home not an upmarket trendy dinks house. i guess it depends on the best potential buyer market.
i always watered the garden beds to make the new mulch look nice and dark ( sellers mulch it is known as in the trade. the sort of mulch Fu would have a fit at) you have to make sure you don't wet the paths though.