Goal and options: How to plant small seeds easily.
output answer: Get some paper tape and your packet of seeds. Put your seeds on the tape, spaced as they need to be. Plant in the spot you want them.

Goal and options: How to use a paint roller.
output answer: Starting with top half of wall, dip roller approx halfway into paint, run roller along grid until roller is saturated but not dripping, then roll paint onto the wall is nice even paths slightly overlapping the last one. Continue with this process for each wall.

Goal and options: To prevent overfilling the pots with the brownie batter
output answer:
Fill 3/4 the way to allow for expansion