It hasn't been too hard, I mainly have to be careful when eating out, my cooking was pretty low-salt to start with.
The Lancet article and the Wall Street Journal article both seem so suggest that 3500 mg of sodium might be the 'sweet spot' when considering long term health trends, but I doubt the US officials or American medical community will change their recommendations on the basis of just one journal article. It may be that high sodium diets by themselves aren't bad for you, but the other things in them (high fat, high carbs, etc) are.
And I've seen fast food meals that exceeded 3500 mg of sodium!