Just two elementary things:
Hwy 61 runs right through the main drag of Two Harbors. This sometimes means
some delays where the traffic can slow to a crawl if you are just passing through.
When traffic is moving, watch yourself crossing this busy roadway. It is easy to get distracted by the "what shop or cafe you want to visit next " mentality when you are on vacation.
Highway 61 goes right through downtown Two Harbors and there ain't no getting around it. Traffic piles up especially on summer weekends. Recently it took me 30 minutes to travel 3 miles when heading west into town from Betty's Pies.
My advice: be patient and enjoy the scenery.
Beware of the seagulls they are fed bread by many tourists so they can occasionally swoop down and try to steal your sandwich.