Dennis van den Berg

Juggling balls: Good way to clear my head.
Swiss army knife: Indispensable item for camping and hiking!
Muse headband: Neuro-feedback device for meditation. Also a nice gadget.
Factfulness book: Hans Rosling is one of the people who inspired me, with his emphasis on facts and positive view of the world.
Star Disc: Once an amateur stargazer, then physics & astronomy as a study. The universe remains interesting.
Travel Guide Ethiopia: Backpacking and getting to know new cultures.
Thermoscan: Never be far from a cup (or jug) of tea.
Chess pieces: Mediocre chess player, but always have fun.
Pickel: Mountaineering. Fantastic combination of nature, challenge (both physical and mental) and inner peace.
Climbing shoes: Initially started climbing, lately mainly bouldering.