How to expand your painting world and make life

Back in the olden day I learned to paint; over time I tried about every medium to find the one that appealed to me most.Too bad, for I love them all: watercolor, oils, charcoal, pastels, acrylic, pen & ink, etc.As you can imagine this becomes expensive when renewing my supplies each time I switch to another medium.But as an engineer I am always looking for a ?better? way to paint - so...