Perhaps you've been here. All your bobbins full, and nowhere to park the odds & ends of yarn on them.
Time to make a dummy warp. Its only function will be something on which to tie a new warp. This will be a straight threading on 16 shafts, two yards long.
Then I made several warp chains out of the yarn on the aforementioned bobbins, and added in some more yarn, to make up enough warp ends to equal the number of ends in the dummy warp. Six yards long.
At some point this weekend I will tie the new warps onto the dummy, and then drag the whole mess through the reed and the heddles. I know, not my usual warping method (I'm a back-to-front warper). Am I crazy? Probably.