I have several properties and recently I took care about one. I have added few things (cheap or even free!) like:
Flowers in the plastic bottles (as glass vases might break, especially in the bathroom) - completely free
Ribbons on the towels (it was nice to see how one lady put it on the lamp in a lovely way)
Extra paintings with no frames and hooks. I just put them everywhere they can stand
Napkins in the napkin holder. I arranged them in a simple, but nice way
Review from my previous guest. Put it on the refrigerator
Small extras everywhere (extra toilet paper, soap still packed, few candies)
It was really almost free, but the guests wrote extremely nice review and personal feedback. Also, they cleaned the condo and even washed the towels (I was so surprised) ! So, I know that small things do matter.
I am thinking of adding more extras though I think that they must be really nessesary, not another reason to complain about!
What EXTRAS do you think are nice?
So far my ideas are:
Extra phone charger
Board games (chess anyone?)
Coloring books and pencils for kids
Notebook with pencil (ala business hotel)
I can't add candles as we have smoke detectors...