Showerthought: I say skip fixing cheap microwaves, but my buddy insists every repair counts. Who's right?

Cleaning sensors with homemade solution reduced my chemical use big time

I recently started mixing my own sensor cleaning fluid from isopropyl alcohol and distilled water. It cuts down on buying single-use plastic bottles from the store. I got the idea from an old repair manual and decided to give it a shot. Now, I use reusable microfiber cloths and a small spray bottle I refill. It works just as well as the branded stuff, but costs way less and creates less trash. My workshop has way fewer empty containers lying around, which feels good. Plus, I can tweak the mix for different sensor types. Honestly, it's a small change that makes a real difference for the planet and my wallet lol.

Pro tip: When your neural network thinks everything is a penguin

Fine-tuning an image classifier, and it kept calling everything a penguin, like cars, trees, and my coffee mug. I checked the code and hyperparameters, but all seemed fine. Turns out I left a penguin dataset in the training loop from a late night. After removing it and retraining, the problem was solved. Now I triple-check data sources before any training session, a stupid mistake that's funny in hindsight.