If you work in an office, try to sit somewhere that others can see your screen(s). Knowing that my boss or co-worker will see me constantly re-opening obviously

If you work in an office, try to sit somewhere that others can see your screen(s). Knowing that my boss or co-worker will see me constantly re-opening obviously distracting sites is a big deterrent. This works better than blocking sites or using productivity apps personally, but others swear by them. You just have to find what works for you.