Hi,
I'm very new to orchids. But I am trying the vanda in a vase technique. (Go to Vanda Alliance on the homepage - then Vanda in Vase) Vandas in Glass Vases
It helps with the humidity etc apparently. I soak it 15mins a day in the mornings.
I found everyone's comments on there really helpful too, I learnt a lot about vandas from there.
Hope it has helped.