Celebrity is offering our customers exclusive discounts -- save up to 78% -- and enjoy exclusive shipboard credits of up to $275 per cabin. Plus, book an ocean-view or balcony cabin on select sailings and choose two of the following perks: 1) an additional shipboard credit of up to $300 per cabin, 2) free gratuities, 3) a free beverage package including alcoholic and nonalcoholic beverages or 4) unlimited Internet. Suites get all four perks. Book by April 30. Click here.