In this paper, I examine design practices by contrasting the Cartesian view of separation with an ontologicalperspective and argue for a dynamic, multiple, and entangled world (namely, sociomateriality). In the digital era welive in, sociomateriality helps move design practices forward in order to embrace constant changes and reconfigurations.The word interface manifests a worldview of separation. Researchers typically conceive an interfaceas belonging to an artifact; that is, the technology, the material. More so, [people] typically considers user interfacesas the layer that separates and connects the technology and the user, which enables interaction. I recognize thelimitations of the well-established perspective of interface design and contrast two traditional HCI concepts (namely,usability and context) from a Cartesian versus a sociomaterial perspective. However, to embrace and capitalize on theemergent digital reality, we need a new vocabulary. I introduce helpful concepts that one can use when designing andtalking about experiences, and I ground the concepts in a sociomaterial ontological perspective. The concepts anddesign approach presented in this paper invite and encourage researchers to focus on experiences as sociomaterialentanglements and re-configurations and not as separated social and material entities. By using Michel Serres’ (1980)term quasi-objects, I call attention to the complexity of sociomaterial entanglements that make up experiences andemphasize a holistic and inclusive design approach. In addition, introducing sociomaterial concepts, such as agentialcuts and intra-actions, into the human-computer interaction domain invites researchers to think and act in new ways inthe era of digitalized experiences. I examine the benefits of the sociomaterial design approach and present practicalguidelines on how to approach experiential design with a sociomaterial take