ecobee - The smarter wi-fi thermostat
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Nest Thermostat (3rd gen) - A slimmer, sharper, sexier thermostat
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
Vivint Element Smart Thermostat - A smart wireless thermostat that blends comfort and savings
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.