Before you even book a room, double-check with the hotel about possible hidden fees, including Wi-Fi charges, parking fees, and tacked-on costs for adding a pet or an extra person to your booking. Then, when you check into a hotel, ask the front desk clerk what services and fees may be bundled into your final bill. Key phrases to ask about are “safe warranty fee,” “coffee maker fee,” and “resort fee”—codes for charges for perks like in-room safes, coffee makers, and hotel pool and gym amenities. Your savvy will pay off in dollars saved.