What Lens for Luggability?

Considering the size and weight of mft lenses I hardly ever only take one lens.

I have a small neoprene lensbag (10 cm long, 7 cm wide, with a belt strap and an extra clip to secure it on the loop on my pants) to carry my 14-150 and a pancake lens and a spare battery in a coatpocket and put a small lens on the camera, like the 45 mm f/1.8 or the m.zuiko 9-18.
If I swap the small lens for the 14-150 the small one goes in the bag on my belt, if I swap it for the pancake it is small enought to fit in a coatpocket. Sometimes I have to do a lens shuffle but it works for me.

Don't limit yourself unless you really have to.