Maybe not all 46 are useful, and some are obvious, but these Windows apps look pretty good if you need them or didn’t even know there was an application that did some of these things. And hey, they’re supposedly free: The 46 Best-ever Freeware Utilities.
Note that these are classified as free, but that’s not explained in depth. While some are open source, the provenance of many of them are either unknown or not stated by the list makers.