Darkness: Beautiful Dark Themes - Chrome extension that provides beautiful dark themes for Facebook, Google and more.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
f.lux - f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
Stripe Atlas - The best way to start an internet business
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.