How about having customer comments during checkout. This will be very useful for the customer if they have any special instructions regarding the order they are placing.
Comments entered by a customer on checkout is not possible in 1.30. Here's another thread about it and a way to fix it yourself (requires programming).
Since I am new to nopCommerce I am not sure of a few things. Using this method how would the admin see the notes before processing the order? Would the Admin be able to add to the notes after the customer has added notes on the confirm screen? Thanks, tlg