There are a few downsides to retirement. 1st, you'll never get another vacation day. 2nd, no sick days either. 3rd, you never get any time off from being retired.
However, there are some positives. 1st, you'll never have to fight the crowds on the weekends if you don't want to as Tuesday and Wednesday are usually when I do errands. 2nd, you can choose to avoid rush hour traffic by leaving later. 3rd, it really doesn't matter what day it is anymore.
Also, I treat chores much like a work thing and start them at say 9am and stop for the day at about 1pm. There's no need to rush them and work all day cause you've got tomorrow and the next day to finish.
Also, give your wife retirement too. I keep away from her during the day so she can follow her own schedule and we get together for meals and evenings. That way she doesn't feel like she has to take care of you all day.