keyboard shortcut for title case in word 2010

Solution 1:

You can't create shortcuts, either use the ALT navigation or press Shift+F3 multiple times,
there shouldn't be a problem pressing a keyboard shortcut twice to reach Title Case...

What you can do is create a quick access item and use Alt with a number, see this page.

Solution 2:

I found a useful macro template at http://word.tips.net/T000215_Intelligent_Title_Case.html .

Reproduced here:

Sub TitleCase()
    Dim lclist As String
    Dim wrd As Integer
    Dim sTest As String

    ' list of lowercase words, surrounded by spaces
    lclist = " of the by to this is from a "

    Selection.Range.Case = wdTitleWord

    For wrd = 2 To Selection.Range.Words.Count
        sTest = Trim(Selection.Range.Words(wrd))
        sTest = " " & LCase(sTest) & " "
        If InStr(lclist, sTest) Then
            Selection.Range.Words(wrd).Case = wdLowerCase
        End If
    Next wrd
End Sub

This macro lets you adjust titles so that words of your choice (typically short words, conjunctions, etc.) are not capitalized.

See also https://english.stackexchange.com/questions/14/which-words-in-a-title-should-be-capitalized for detailed comments on capitalization styles.