How's this for an Ecomod?
A folding/ collapsible ladder means no drag inducing ladder on the roof
(I used to be able to fit the 6 & 8 foot ladders inside the VW).
I'm also always on the lookout for light weight tools like these nifty shifting spanners:
https://www.kincrome.com.au/product/...adj-wrench-10~
It was about 150g lighter than the spanner it replaced
It also means lugging around a less heavy tool box.