I file my taxes online like many, perhaps most, Canadians do.
What I'd like to see is a page that gives me high level choices about how I'd like my tax dollars allocated. A certain amount has to go to 'keeping the lights on', but there are many places where voters could give direct choices. Perhaps I'd like to see more money go to Education than to the Military, or to Health Care, or the Environment. Being able to record my choices would give me a direct say and a sense of ownership and commitment to it.