Tell her you love her through thick or thin rich or poor, I don't have no diamonds but i have love. And get some flowers
Cook for her, and do the washing up. Put some romantic music on and ask her to dance. A foot rub is always nice too :)
I love you. Card Draw a couple of flowers and color them.
Walmart Target Hallmark and lots of grocery stores have cards .49-$2.00
Plus a little 4 piece box of chocolates for $1.50-$2.00.
Total $3.00, max $5.00