Try using a rotary cutter for large volumes of paper. This tool may be quicker than scissors. The thicker and shorter your strips are, the less margin for error you’ll have. When in doubt, make your strips thinner rather than wider.
If you are using glue, hold the two ends of paper together until the glue dries. Make sure that the edges of the paper do not slip askew. You should not need more than one staple or one small square of tape to seal each loop. Make sure that the link is sturdy and will not fall apart.
If you try to seal a chain that already has an even number of links, the orientation of the loops won’t match up.
If you’re having a party, use a waist- or chest-level paper chain to block off a “private area” like a staircase, a hallway, or a section of backyard. The paper may not hold up to force, but it will serve as a gentle deterrent to wayward guests.
Hang the wreath on your door, your wall, your fence, your tree. The paper wreath should be light, and easy to attach with tape or a hook.