A nice little method for Slugifying a string

StringExtensions.cs

using System.Text.RegularExpressions;

namespace mrstebo
{
	internal static class StringExtensions
	{
		public static string Slugify(this string s)
		{
			return s
				.ReplaceSpecialSymbols()
				.RemoveSymbols()
				.ReplaceSpacesWithDashes()
				.ToLowerInvariant();
		}

		private static string ReplaceSpecialSymbols(this string s)
		{
			return s.Replace("&", "and");
		}

		private static string RemoveSymbols(this string s)
		{
			var re = new Regex(@"[^a-zA-Z0-9 -]");

			return re.Replace(s, "");
		}

		private static string ReplaceSpacesWithDashes(this string s)
		{
			var re = new Regex(@"\s\s*");

			return re.Replace(s, "-");
		}
	}
}