hmm....
i think most of the ppl cant or dont express their love to their loved once everyday.....
because its impossible to do that for various reasons..
like busy with the job, studies, and issues to communicate( eg-parents

)...
so there must be special day to express these feeling to their loved ones..
must not be the valentines day..
may be a b'day, an anniversary or may be a special date in their love life...
by giving her something like a card or at least express them
how you feel about him/her..
so im personally dont miss chance like this..