Portland Perks coupon book includes: $1 off museum admission.Where imagination lives! Hands-on exhibits, Water Works, Dig Pit, Grasshopper Grocery & Butterfly Bistro, Clay Studio and live performances. For kids 10 and under — and their families. The Portland Perks hotel package includes free parking, complimentary continental breakfast for two and the discount-packed Portland Perks coupon book, filled with savings on dining, tax-free shopping, attractions, the arts and more. This exclusive package is only available through Travel Portland.