What is the cheapest way to get into air? (no jokes please)

I want to get airborne with as little building involvement as possible.
The cheapest way. And with little maintenance as possible.
What are the possibilities?

I mean building a gerobee could take years and lots of money and this
rotax motors are 'spensive.

Building a wooden woodhopper could be fun and take lots of hours or
maybe years and lots of scrap wood.

There is also a storage concern, takeoff space, transportation of the
aircraft.

Maybe powered paragliding is the easiest way to get closer to the
skies?

Any hopes and/or ideas?

K.