Varnish

I've often been asked what I use to varnish my paintings.  These days, though I do feel a little guilty environment-wise, I have been using this spray varnish because it works well and doesn't disturb the painting underneath.  I used to mix two Liquitex liquid varnishes, a gloss and matt to create semi-gloss, and apply it with a roller brush but it can also be a problem as it requires so much water to clean the roller thoroughly.   As I mentioned, I do struggle with the fact that spray paints aren't great for us and I wish they created something better that worked as well, but I also really like how quickly I can complete work and I also like the effect.  So, in the new year I plan to research and find a better solution.  If anyone has any suggestions, I would love to hear them.