This route is built around only having to activate the lift twice. You get four uses of the lift before you need to reactivate it using the switch. If you end up using the lift more times than necessary you will likely incur significant time losses as a result.
I have split the route into several chapters with ALL CAPS headings to make it a little easier to digest.
Note: if there is a number in brackets next to an item, this means you need to grab the item in this spot this many times to ensure you have the correct itinerary. So if you see (2), this means you should grab the item, then walk back over it to get the item you dropped. And if you see (3), this means you are effectively dropping the item you picked up back down again, as it is useless and only required to achieve 100%.
START: Right door Grab Pound Coin Right door Hit lift switch Grab Beach Ball (3) Right barrel Left barrel Grab Water Bucket Left door x 2
LIFT 1: Hit button 4 Exit lift Grab Conveyor Control (3) Middle door x 2 Grab Penny Right door Fill Water Bucket at tap Left door Hit Help switch Left door Right door Jump at the right rope
STAIR SLIDE 1: Slide down the bannister Right door x 2 Middle door Grab Hammer Left door Grab Plant Pot (3) Right stairway Grab Door Handle (3) Right door Left door Jump over pit Grab Fuel Can Right stairway Right door
LIFT 2: Hit button 1 Grab Fire Extinguisher Exit lift Grab Driving License (2) Right door Grab Cross (3) Top window Grab Ignition Keys Right chimney Grab Sword (3) Walk through flames and drop right Grab Square Key (2) Drop left Right door Jump at the right rope
STAIR SLIDE 2: Slide down the bannister and grab Crash Helmet Right door Grab Library Ticket Left door Jump up the stairs to top left exit Jump to middle door Grab Library Book Right door Right stairway (don't jump for rope) Drop left through the first stair Left door x 2 Grab Sharp Scissors Right door x 3 Grab Square Key Middle door Grab Laser Gun (2)
BOX KEY AND MAGNET: Left door Right door Right stairway Right door Left door Drop through pit Grab balloon Jump across platforms Grab Box Key (2) Left barrel Right door x 3 Right stairway Middle door Grab Magnet Left door Right door Left door Jump over pit Right stairway Grab Triangle Key (2) Right door
LIFT 3 AND 4: Exit lift Left door Exit lift Middle door Right door Left door Grab Crystal Orb (3) Right door Grab Power Pack Drop through pit Hit Lift switch Right barrel Left barrel Left door x 2
LIFTS 5 AND 6: Exit lift Grab Fuel Can (2) Middle door Fill Fuel Can Left door x 2 Hit button 3 Exit lift Launch rocket Grab Moon Crystal (2) Launch rocket Grab Magnet Right door
LIFTS 7 AND 8: Hit button 1 Exit lift Middle door Fill Fuel Can Left door x 2 Hit button 3 Exit lift Launch rocket Grab Laser Gun Right door Hit Magnetic Lock switch Grab Clock Key Left door Grab Fuel Can Launch rocket Jump up the stairs to top left exit Drop through pit
HOME STRAIGHT: Left barrel Right door Jump up the stairs to top left exit Jump to middle door Middle door Right door Grab Towel (2) (or 3 if you're not doing Punch Manip) Right door x 2 Grab Cooking Bowl Left door Jump over clock Grab Joystick (2) Touch clock