To spice up your relationship, the next time you and your lover go scampering off to a weekend getaway, check into a hotel as Mr. and Mrs. Smith. This pseudonym allows the two of you to become different people while enjoying your stay. To figure out which hip hotel you should play at, check out The Smiths’ Hotel Collection (Universe Publishing; Tradeback; 304 pages; $29.95) . These boutique-hotel guides come in two editions: Europe and the UK & Ireland. Also, there are two (Vol. 1 and Vol. 2) CDs entitled Mr & Mrs Smith: Something for the Weekend. The soulful, jazzy and funky tracks will put you in the mood for any and everything. To start your shenanigans, go to www.mrandmrssmith.com.