What about stamps both you and spouse have together?
Canada, Mexico - (Reynosa, Monterrey, Nuevo Laredo, Juarez, Mexico City), Barbados, Bahamas, Japan, St. Lucia, Belgium (Brussels), Jamaica, Brazil, England (Manchester, Gatwick), Spain (Barcelona), Aruba, Trinidad & Tobago, France (CDG), Netherlands (Amsterdam Schipol), Belize, Italy (Fumicino), Germany (Frankfurt), Costa Rica. Can't find the Grand Cayman stamp. What's nice about these is that except for the Mexico and Trinidad stamps, Mrs. Outoftown's passport has the same stamps.