For the record.... I want to get enough shoe trees to cover my collection. Now, I use them on the most recently worn. I buy from a "fine pair of shoes" who do raw cedar for £25 (were £20, should have got more).
Obviously, 9 or so pairs of shoes is a big hit all at once, so I'll get there.
If anyone knows of where I can get 5 or more pairs somewhere, for a great price (bulk buy) please let me know!