Dress up your card envelopes by using the end of your pencil eraser & dipping it in stamp ink & dotting the inside of your cards' envelopes! DIY Polka Dot Envelope Liner - Such a simple idea to add that special touch.
You’ve Got Mail: 17 DIYs for Super Stylish Stationery
Wrap some baker's twine or other string around a wooden block to create a graphic textured stamp. -can also use rubber bands- Stamp on inside of paper bags from grocery store or paper that comes in mailed packages, use as wrapping paper.