I kinda followed a similar trajectory. Started with a 15" MBP (2011) for years, and was super happy with that. It was a beast. But it was also a tank of a lapto

I kinda followed a similar trajectory. Started with a 15" MBP (2011) for years, and was super happy with that. It was a beast. But it was also a tank of a laptop. Then I got a Surface Pro 3. It was FAR more portable, enough to make me realize just how much less portable my MBP was. I couldn't bear to bring the 15" back out. However, the SP3 was definitely too small of a screen for dedicated work. Great for college & notetaking, but reliant on external displays. Now I've been using a 13" surface laptop for a few years and that's really struck me as the right portability vs productivity balance. 13 inches is big enough for two columns of code, and fits in basically any backpack pouch easy. I probably won't be going back to 15" when this dies.