When choosing what things to take to your hotel, think comfort and practicality. Loungewear is perfect spa attire. As well as bathrobes, a lot of hotels supply toweling slippers. However, if you're going to exercise classes, pack some trainers. Want to soak in the hot tub or make use of the pool? A bathing suit is a must. While spending all day lazing around in practically nothing can feel very freeing, be mindful that dress codes may apply if you're at a first-class resort. Bring a smart outfit in your bag too — just in case.