Get Squirtle (can probably be a decently bad one)
Catch slaves on Route 1 if you see them, catch L4+ Rat on Route 2
Switch train on Sammy, Liam, Brock
Shop: Sell RT, Buy 3 Antidotes, 3 Para Heals, 3 Awakenings, 5 Repels, Pokeballs if you need them, Max Potions
QA on Route 3, fight top girl instead of bottom bug catcher
Take Moon Center
Register TM case, equip Persim, Repel
Fight Bug Catcher and walking lass
Get Rare Candy
Get Star Piece (first ladder down) and Ether (second ladder down, the one to go to MP)