This database disseminates inexpensive yet effective enrichment ideas and practical tips from the Laboratory Animal Refinement and Enrichment Forum (LAREF). The forum, an email discussion list, exchanges first-hand experiences about ways to improve the housing and handling of laboratory animals. Links to photos and graphs shared by LAREF members are available. Selected practical enrichment options from other published sources are also included. Detailed descriptions of the enrichments are provided. Some entries are accessible as full-text documents.