Had a 4'6" tube of aluminum trim channels delivered at work, and had to take them home by bike.
That's an unusually wide load for me, and I was very conscious of it the whole ride, giving parked cars a lot of clearance. I took the Charles river path home, partly to get more space, but it was a constant battle to avoid whacking headphone wearing pedestrians, and metal crash barriers.
There were a couple of places in particular- at the BU bridge construction and at the new pedestrian overpass construction near Magazine street, where the path was extremely narrow, and I had to wait for oncoming traffic to clear before I could proceed.
I got home, took the small-brown-dog for a walk, and then headed out again in the other direction to Home Depot, where I picked up shelf pins, break off screws, double stick tape, rug underlayment and a 4' length of 1x6 baseboard.