using an ad blocker. personally, i use ad blockers for years and when i work on a friends laptop im shocked how much ads there are actually. i cant count on a hand how mucn i told my father he should use ad blocker browser and extenstion. and he wont do it. recently, i changed the DNS server on a router level to nextdns, where it blocks ads and trackers. he told me its amazing how smoother the experience is now
password managers. as an IT specialist i have about 300 login details for many services, personal, work and clients. every login has its own password and eventually email too. and i know sooooo many people who forgot their passwords (they have about 3 very similar ones but ok) and try them all until they find out they had to creat a new for that specific service. and they are so unaware about the dangers (for example fishing, SE, …) with this method.