We leave home at the same time each morning, kiss goodbye and then one of us will usually text the other around lunch time just to say "love you" or similar. We might text if something super interesting happens at work or if I need to pass a message on, like sometimes my parents pick our daughter up from daycare so I need to let him know. One of us then calls the other when we're about half way home from work to see who is closest and who will pick our daughter up, and we'll chat for 15-20 minutes about our day because when we get home it's mayhem trying to get dinner cooked, kid bathed and put to sleep.
I have a friend and pre-kids when we'd often go shopping together or spend a day out together, she would easily speak to her now husband at least hourly. He would call her all the time, I have no idea why, he never seemed controlling or jealous except when she was out without him and it was like he was constantly checking up on her. I was in a relationship with my now husband so it's not like she was out with me trying to pick up, and he'd known me for years. Strange dynamic, not sure if it's still the same. A bit off topic sorry, but I just find it really rude when you're there to catch up with someone who you might only see fortnightly / monthly and they're constantly talking to their partner who they see every day!