I was climbing with a split-tail on my main line and a split-tail on a long alternate lanyard (not a flipline). That makes 4 biners which got very crowded on my screw_link_/saddle attachment. So I tried to figure out a way to consolidate anchoring the "standing part" and bridge on one carabiner for the lanyard. I wanted to keep the split-tail for my main climbing line. So by doing this I'd be down to 3 biners which is better than 4.
Here's what I came up with. It's a pair of stacked double fisherman's loops. The green knot wraps around the loop of the orange knot, the orange knot wraps around the standing part and the tail of the green line:

Useless or useful? I understand that I could accomplish this more simply by doing a traditional biner tie-in using the tail of the main rope to make the bridge. The only advantage I can think of is that the attached tail can be replaced when it gets worn, and I like having a different color rope for the tail.
-moss