I rode home today with my giant brick-like laptop in my chrome backpack (along with clothes and other miscellany), and while the pack did a great job with the load in terms of feeling balanced and comfortable, my neck was stiff this am I assume from the weight of the strap on my left shoulder/neck. Arhgggg. Need to sort this out!

Otherwise, my ride was delightful. Took a new way home which involved three blocks of > 18% climb, but otherwise much calmer traffic than my usual route. May do this in the future