DataSource Controls :: Unicode Data By Default - In Every INSERT And UPDATE

I have a web project with more than 100 input boxes , so in every INSERT and UPDATE to sql server in front of sql statement I must put the golden N word, so it will be in UNICODE mode. Do we have some alternative of this? How can i make it in EVERY UPDATE and INSERT to sql server in data layer level- make it like u insert UNICODE (without N word) How can you get MSSQL server to accept Unicode data by default into a VARCHAR or NVARCHAR column?

I know that you can do it by placing a N in front of the string to be placed in the field but to by quite honest this seems a bit archaic in 2008 and particuarily with using SQL Server 2005. Example:

cmd = New SqlCommand(sql, ConnectionFromEnum(whichDatabase))
cmd.Connection.Open()
i = cmd.ExecuteNonQuery()

so....

the question is : Am I suppose to make something with SQLCOMMAND to set- "enter evthng like it is UNICODE, with N auto"? or i must specify UNICODE by default in somewhere else? just to indicate that i already set in web.config

<globalization requestEncoding="utf-8" responseEncoding="utf-8" fileEncoding="utf-8" responseHeaderEncoding="UTF-8" culture="en-GB"/>

So global questions HOW TO MAKE INSERT AND UPDATE Unicode by default in every insert and update methods, without placing N word in front of literal string?