The Recent Items menu can be really helpful-- if the item you're looking for is in it! Here's how to increase your chances.
How to get more items into the Recent Items menu
Let Apple take care of Daylight Saving Time on your Mac
Your Mac will always have the correct date and time, through power outages, Daylight Saving time, whatever-- if you choose the right options in the Date & Time preference pane.
How to show the day, date, and time in your Mac’s menu bar
Check one little box and improve your Mac experience for every day moving forward. I wonder why Apple didn't set it up this way to begin with.