The Nack Pro utility knife[0][1] is a great tool; it's easy to operate one-handed and is virtually indestructible. The handle contains 30 blades in a rotating magazine; you change blades by rotating the base of the handle. I bought one in the early 2000s and it will probably last me the rest of my life.

[0] https://toolmonger.com/2008/12/08/utility-knife-revolver/

[1] https://www.ebay.com/itm/324381893450