Visiting on a budget? Here are the top 25 free things to do in Las Vegas.Don’t forget sunscreen, sunglasses, a hat, or any other gear for sun protection if you’re doing outdoor activities.In the summer, the AC is always pumping indoors so a light jacket is still nice to have. In the winter, it gets cold in Vegas, especially when the sun sets. Want to avoid crowds? Avoid holidays, festivals, and massive conferences.