The hardest part about this challenge was the randomness of the camping mascots! Some days I could make close to 100k and other days it felt like half! I tried to save money by making the tub and toilet I eventually upgraded. Didn't have a computer until I made a table and chair. Only used a cooler for food. Turned the empty bowls of cereal into trash piles to scavenge every time I ate then dragged trash pile to actual trash can so I wouldn't lose time taking steps.
I found 54 unique upgrades in the game but one of them was unable to be done without joining the scientist career at level 4 and that counted against the income only from woodworking/handiness. Here is the list of all of them for you
@Nutella.
Though I will say I took extra time to learn the actual upgrade part requirements. Because Making a hot tub unbreakable only cost 2 common parts but doing it for a dishwasher cost like 3 common and 3 plumbing! So crazy!
Pulsating Jets - Corner tub/Expensive tub
Soothing Jets - Corner tub
Self-Cleaning - tub, sink, toilet, sauna, stove, microwave, coffeepot, tea kettle
Clean Coat - tub
Sturdy Faucets - tub, sink
Add Aromatherapy Filter - hot tub
Make Unbreakable - hot tub, dishwasher (Cheaper on hot tub)
Add Stereo - hot tub
Self-Cleaning Wall Coating - shower
Pulsating Massage Jets - shower
Water Flow Regulator - shower
Auto-Soap Dispenser - sink
Bidet - Toilet
Superior Flush - Toilet
Steel Centrifuge - Chemical Analyzer
Improve Lens Quality - microscope
Robustify Inner Workings - microscope
Perfect Inner Workings - microscope
Augment Telescopic Eyepiece - telescope
Reinforce Telescopic Pivots - telescope
Precision Temperature Probe - Sauna
Waterproof Circuitry - Sauna
Sturdy Panels - 3D game
eMotion Engine - 3D game
Fireguard - fireplace
Autolight - fireplace
Super Reception - tv, radio (Cheaper on cheap radio)
Better components - tv, radio (cheaper on cheap radio)
Firaxium wiring - tv, radio (cheaper on cheap radio)
Improved Projection - Outdoor tv
Better Video Card - computer
IP Spoofer - Computer
ECC RAM - Computer
Add Corrective Laser Lens - Xray (can't do while focused)
Convert to Frictionless Scanner Rig - Xray (can't do while focused)
Reinforced Panels - Invention Constructor
Fresh Maker - Fridge
Reinforced Door - Fridge
Fridge of Steel - Fridge
Coated Exterior - stove
Heat Sensor - stove
Flavor Enhancer - microwave
Coated Interior - Microwave
Add Infuser - Coffee pot, tea-kettle
Consistently perfect pulls - espresso
Add Stick-Free Pot - Tea kettle
Increase Cleaning Speed - dishwasher
Make Extra Reliable - dishwasher
Make Run Quieter - dishwasher
Temper Telescopic Pivots - telescope
Add Safety Protocols - Chemistry Lab (can't use, need scientist career)
Add Animations - neon sign
Reinforce Electrical Contacts - neon sign
Install Surge Protector - neon sign