... a little snuggling under a blanket while watching a disney classic movie by firelight at fort wilderness? free. well, unless you splurge on a smores kit. then it costs you about five bucks.
... a little hammock time at the poly or the carribean beach, while you catch fireworks? already mentioned but very worth considering. free. byo..whatever you like.
... cocktail hour in the lobby of the grand floridian - music included? it's pretty, discreet, and free. cocktails not included.
... a late-night ride through a less-popular classic? i recommend the ttc/peoplemover. even teenagers can figure out what's fun about this one.
... walking hand-in-hand along the path from toontown to tomorrowland in MK? it's a nice quiet stroll especially in the evenings.
... mini golf? it's not free but it isn't expensive either (especially if you have one of the coupons) and it lends itself to togetherness - 'coaching'
... karaoke at the swan? buy a drink each and spend time singing stupid love songs to each other - the sappier the better!
... 'impressions de france' - trust me, the cms there totally support romance. follow it with a shared pastry/coffee snack.
Romance on a budget is not really difficult...we do it all the time.
HTH!