Bindings from names to resources playa key role in ubiquitous computing systems. They can allow users to retrieve virtual resources by producing a natural language name or by scanning the ID on a physical object. Shared names could also be used to group related resources semi-automatically. To be maximally useful, sets of bindings (environments) must be personalized to a user and/or context. Busy users, however , have little time to devote to authoring. This paper presents a lightweight system for quickly authoring environments. Its new features include a simple mechanism for "mixing" existing environments into new creations, ability to repurpose legacy web content, and support for an interactive authoring technique that we call "authoring by playing." 17 Pages