Prepend and Append Dropdownlist

I'm trying to prepend and append values to DropdownList.  Currently all dropdownlist contain ListItem with Text equal to '- Select -"  and all other database items appended dynamically to control.  Customer now wants to append 'Other' to every list.  I do not want to place in table because I want 'Other' to always be the last item in the list.  How do I do this?

See example control in code section.

<asp:DropDownList ID="Allergies1DDL" runat="server" AppendDataBoundItems="True" 
                                                   DataSourceID="AllergiesDS" DataTextField="Allergy" 
                                                   DataValueField="Allergy" TabIndex="1" Width="12.5em">
                                                   <asp:ListItem Text="-Select-" Value="0"></asp:ListItem></asp:DropDownList>

Select allOpen in new window