OpenWRT based travel router. On the plane I power it with a USB battery pack. I pay for Internet access and share it with my phone, laptop, wife and kids. Five devices online for $8 on Southwest.
Built in VPN client connects to my home VPN server and keeps all connections safe. Airplanes, hotels, coffee shops, etc.
I love being able to share a single connection with multiple devices, get NAT firewall protection, and VPN security.
When the home Internet goes out, I put the router in the backyard to bridge the open WiFi from the school nextdoor.
It depends on the stage of life you're in. My kids are out of college and in collage and it's all funded (529). I'd love to pour myself into achieving something incredible.
A non-insignificant part of my job involves saving Gmail messages and their associated attachments to specific folders in Google Drive.
I wrote a Google Apps plug-in that makes this a single-click activity. It used to take ~20-30 seconds per email to properly save the email as a PDF as well as the attachments. All resulting files have to follow a specific naming convention.
I use this tool several times a day and it really brings me joy each time I click the button and save some time.
https://www.youtube.com/watch?v=hQNe7nSgcrw
I can see how in some organizations/bureaucracies that you have to destroy it before you can have any hope of fixing it.
When there are a significant number of people in an organization trying to stop progress, it's impossible for change to happen.