Cost Plus, Inc. Announces Reporting Date for First Quarter Financial Results and Investor Conference Call

Oakland, CA – May 8, 2007 — Cost Plus, Inc. (Nasdaq: CPWM) announced today that it will release its first quarter 2007 financial results on Thursday, May 24, 2007, after the market close, and will host a conference call for investors at 1:30 p.m. PT that day. Participating in the call will be Barry Feld, President and Chief Executive Officer, and Tom Willardson, Chief Financial Officer.

The conference call will be in a “listen-only” mode for all participants other than the sell-side and buy-side investment professionals who regularly follow the Company. The toll-free phone number for the call is 866-770-7051 and the access code is 53635914. Callers should dial in approximately 15 minutes prior to the scheduled start time. A telephonic replay will be available at 888-286-8010, Access Code: 59314804, from 6:30 p.m. PT Thursday May 24, 2007 to 6:30 p.m. PT on Thursday, June 7, 2007. Investors may also access the live call or the replay over the internet at www.streetevents.com; www.fulldisclosure.com and www.worldmarket.com. The replay will be available approximately two hours after the live call concludes.

Cost Plus, Inc. is a leading specialty retailer of casual home living and entertaining products.

Contact:
Cost Plus, Inc.
Tom Willardson
(510) 808-9119