Cheap couple halloween outfits.

Walmart and Target usually have cute cheap costumes

Yuo can go as a guy, and your SO go as a girl. Hey, it's free! Just swop clothes for a night! lol. You can go as a pimp and him as a hoe. (or vise-versa)

go to www.costumeideazone.com they have tons of costume ideas for couples.

here is some cute ideas from the above site:

Upper and Lower GIs Get a set of army fatigues, and have one person wear the tops and the other wear the bottoms.

Cardiac Arrest She dresses up as a big red heart (cut out of cardboard or cloth) and wears handcuffs. He dresses like a cop.

Janitor and Trash One person dresses like a janitor, and the other glues trash all over themselves.

I really like renea20's idea, very cute! I went to beauty school with a girl who dressed up as a redneck trucker for Halloween, she drew a mustache and beard on her face with eyebrow pencil, colored in her eyebrows, got an empty beer can, an old flannel shirt with the sleeves cut off, and found a mullet wig. HILARIOUS!

Well...I'm not sure if your into this but it's cheep and funny!
Buy a pumpkin shirt or orange shirt make a pumpkin face on it! Dress your hubby in a plain shirt with permanent marker write " peter,peter pumpkin eater on it! I did this last year people thought it was great!