Despite what you think, people still hand out business cards! I like to keep them all in an album called "Business Cards".
Now you can avoid Lumbergh asking for more TPS reports.
This ensures that everyone is aligned and has mutually agreed to the same decision. Spoken word can sometimes make things get lost in translation.
You can request a "vacation refill" for all your medications so you don't have to worry about rushing out to get COBRA or another interim insurance policy just to fill your prescriptions.
They will likely go out of their way to work with you first next time.
You will make more by switching jobs than you will at staying at your current employer.
They are more likely to quickly help rather than leave you waiting in the queue.
It's better to surprise than to let down especially when estimating time it takes to complete a project and delivering it.
Don't start a tech startup in a tech hub. Run a business completely unrelated to tech and use your skills to improve that business. Go after the low-hanging fruit.
You can even do this with things like event fliers, wedding announcements, etc.