Video S1. First-person perspective of transferring C. elegans from an NGM plate to halocarbon oil. Video depicts two representative examples of transferring C. elegans from an NGN to a drop of halocarbon oil at the edge of the injection cover slip. The first example starts at 0:05. Approximately 23 worms are picked up by 0:10. All worms are safely deposited in halocarbon oil by 0:17 with three swipes of the paintbrush. The second example starts at 0:22. Approximately 18 worms are picked up by 0:30 and safely deposited in two swipes in the halocarbon oil by 0:35. At 0:37, there is a final swipe that spreads the bristles to check if worms are still left in the bristles. Video corresponds to steps 5 and 6 in Supplemental Note 1.