The best way to handle keys strings

I'm working in a web applications and always i need to use some keys to save some values into object like :

Session["CurrentUser"] = Users.CurrentUser;

I tried to put them into a resource file but it doesn't make sense as i will not need to localize them and the c开发者_高级运维ode generated by the resource file looks for the culture every time i get a string from the file.

what is the best way to handle those keys in order to avoid spelling mismatches?

I'm using Visual Studio 2010 and ASP.NET MVC2

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You could use constants:

public static class Constants
{
    public const string CurrentUserKey = "CurrentUser";
}

and then:

Session[Constants.CurrentUserKey] = Users.CurrentUser;

Also the compiler doesn't care much about spelling or grammar mistakes, as long as the strings match he is OK :-)