How do you use QR codes for marketing?

I read a few old threads about QR codes on this forum and started thinking how much things evolved. Here we are in 2024, and honestly, they have become an incredibly versatile tool in my marketing strategy. I'll try to remember and list all the ways I use them:

- I place QR codes on product packaging to give easy access to product guides, user manuals, or how-to videos; I found that this makes onboarding easier.
- Outdoor advertising QR codes on billboards and banners lead directly to campaign landing pages, they capturing attention and I make sure there's a clear call to action.
- We put QR codes on company vehicles, turning everyday commutes into brand awareness opportunities.
- I use QR codes on event signs to share schedules, speaker info, and quick sign-up links, it's convenient and reduces paper waste.
- My digital business cards include QR codes, which make it easy to connect, exchange contact info, and especially follow up with leads.
- Inside our locations, QR codes on posters direct customers to exclusive deals or loyalty programs, boosting engagement right where they shop.
- We place QR codes on receipts or at service counters allowing customers to leave feedback instantly, which is super important for improving service quality.
- I add QR codes to our print and digital materials, linking directly to our social profiles, making it simple for customers to follow us.

I hope I'm not forgetting something. I got a lot of good ideas from Uniqode blog, that's the generator I use, and I just make the adjustments in suggested strategies to fit my particular case. Where do you get fresh ideas? And how do you use QR codes nowadays?