It occurred to me that when visiting a gallery I find myself immediately "drawn" to certain paintings, also I like to look very close up at things like brush marks, paint effects and paint "blooms" In a mixed show oils seemed to win over watercolours and I think it is mainly because of the reflections.
So... how to get rid of the glass?
This is what I do...
First of all take your watercolour painting and paste the back with PVA (Elmer's in the US I think) do this quite carefully working out from the center of the painting, so that none seeps underneath.
LASCAUX ACRYLIC RESIN FIXATIV When that was dry I did another just for luck!
After that I sprayed a few thin coats both front and back with LASCAUX UV PROTECT I guess by this stage you could use any varnish that you would use for oil paintings. The most important thing I think is the UV protection.
I tested it by pouring hot coffee on it and cleaning with a cloth...it was fine!
After that, when all is dry I framed it like I would an oil painting, Mine usually go on a white backing board with a white frame. I gave the painting , the found objects that were to go underneath the painting, and the backing board a few coats of matt picture varnish and that was it.
This is one of the framed, glassless, varnished watercolours.