Synergy (Share a mouse and keyboard across computers)
If you have more than one machine on your desk, you know it’s a pain to have multiple keyboards and mice. Synergy is a virtual KVM that works across PCs, Macs, and Linux boxes. It’s $19, but worth it.
Spacedesk (Turn your tablet into an external monitor)
It’s well known that more screen real estate increases productivity. Given we all have tablets lying around, why not use them as an extra screen for your laptop? That’s what Spacedesk is does for you, for free.
If have any kind of bulk image converting tasks, Reaconverter is the tool to use. You can create simple scripts and droplets that will transform entire folders nearly instantly. There’s a free version.
KeyTweak (Customize keyboard behavior at the nano-level)
KeyTweak looks old because it’s been around for a long time. But it still works and it’s free. If you need to surgically alter your keyboard, this is the tool for you. Not for newbies.
It’s hard to believe, but PCs still come loaded with crap. PC Decrapifier has been with us for years and is still a go-to tool to clean the crap from your machine. It’s a free download.
MysticThumbs (Display image thumbnails instead of generic icons)
The Windows desktop and File Explorer show thumbnails for some file formats, but not all. If you want to see (and customize) thumbnails for many more formats, MysticThumbs is your friend. $30. Just one snag: it has a problem displaying thumbnails from shares.
At almost $40, this isn’t cheap. But if you want to cleanly remove applications from your Windows install, Revo Uninstaller Pro can save you a lot of time, and even save you from having to do a fresh install… for a while.
For those who remember NetProfileSwitch, Mobile Net Switch is a tool that’s been updated for Windows 10. As you move from network to network, it adjusts your PC’s network configuration automatically. About $30.
Why is my drive suddenly full? Ever have that happen to you? With WinDirStat, you can see all your files at a glance and easily see the clusters of files that are taking up way too much space. Oh, yeah. It’s totally free.
Back in the day, there was Windows Remote Assistant. Today, Windows 10 supports Quick Assist, which will help you fix machines remotely. If both of you don’t run Windows 10, consider TeamViewer — there’s a free version.
So someone just sent you a file compressed with some odd format. Consider 7-Zip your go-to tool. It can uncompress 7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM, AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z files.