• Recycled Christmas (etc.) wrap from the year before (save a lot of money!)

• Old posters

• Recycled old paper tablecloths (the good parts)

• Pretty paper napkins
   
• Crocheted doilies
    
• Use wide lace to wrap tiny packages, gathered on top with a ribbon bow
    
• Big green leaves! (e.g., elephant ears, or the larger philodendrons)

• Scarves

• T-shirt logos cut from elderly shirts

• Cellophane

• Tinted plastic wrap

• Tissue paper (can be wrapped in layers, folded back on itself to expose different colors, etc.)

• Old calendar pictures (my gifts wrapped with these are always highly admired)

• Potato- (or rubber-)stamped butcher paper (or try sliced fruits and vegetables as stamps!)

• Sheets of colored construction paper, the center of which has been sprayed lightly with canned "flocking" (fake snow for the tree) over a doily or paper snowflake (like a reverse-stencil; remove the paper doohickey to reveal the shape underneath)

• Newspaper (comics and stock market reports look particularly appropriate, somehow; sometimes I glue other things on - one year it was cut-out dogs from a dog desk calendar... sometimes I wrap paper and/or ribbon around it)

• Telephone book pages

• Old Mylar balloons (they make very elegant wrapping "paper"!)

• Scrap fabric (possibly stamped with something extra, like bees on the pieces you tie onto jars of home-grown honey)

• Pillow cases (gifts in themselves?)

• Wrap a kitchen gift in a dish towel
    
• Use a plastic, fabric, or paper tablecloth (or the remains of that paper one you used for your last picnic?)
    
• Wrap soap in a luxurious (or scrubby) wash cloth

• Wallpaper scraps (including borders, which look very handsome wrapped around larger, otherwise-wrapped packages)

• Opaque plastic shopping bags (the part that doesn’t have printing on it)

• Road or topo maps

• Sheet music

• "Diacrostic" word search paper, with a name or a greeting circled (you could copy it from a book or make your own digitized version to print out)

• Corrugated paper mailing wrap

• Plastic bubble wrap! - over colored paper

• Aluminum foil (it can be embossed by gently pressing it against a rough or bas-relief-decorated surface, like a doily)
    
• Teapots, teacups, coffee pots, vases, insulated bags, lunchboxes... etc. etc.!
    

(A tip: If it’s not quite enough paper to cover the object, try turning it kitty-corner... You can actually save a lot of paper by wrapping on the diagonal. Looks more interesting, too, sometimes!)