When I was 15, we used props, garb, music, candlelight, the whole nine yards to enhance the game. Now that I'm in my 40's, I draw the line at dressing up. I like to draw maps for my game by hand and will design simple props. (I once made a leather bag containing common spell components for my 1st ed wizard. It had things like string, candle wax, powder, etc... things that you could find around the house. When a spell component called for something like a wing of a bat or a tail of lizard I would purchase one of the those toy rubber versions one can get at the dollar store and cut off the required part.)
I also made my own spell book. This thing was massive and I would write out each spell that my character had from the PHB word for word. It was pretty cool.