I picked up the BlackRapid Wander bundle from Amazon:

https://www.amazon.com/BLACKRAPID-Wander-Bundle-Smartphone-Safety/dp/B072595S4G/ref=sr_1_1_sspa?ie=UTF8&qid=1542215241&sr=8-1-spons&keywords=blackrapid+wander+bundle&psc=1&smid=ASYNZAYMQDDXS

This way you can tether your phone to something (lanyard, wrist strap, etc.) This gadget kept me from dropping my Note 8 in the water while fishing.

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