Great advice from everyone
I just wanted to add that Bo has a lot of energy in the evening, and we find that taking him out and playing with him or taking him on a walk does wonders in the evening. Oftentimes, Bo and I will take a walk after 9 p.m.- it's great bonding/leash training time because there are not as many distractions as during the day- and it's cooler outside! There is not much traffic, walking in the evening is how I taught him to sit when a car passes by us.