Windows only: You'll often see a no-install, runs-from-its-own-executable program or utility get a special nod on this blog—and for good reason, as a jam-packed "Add/Remove" screen is not a pretty thing. But for those with a lot of one-use apps to wrangle and find, free utility ZipInstaller makes a lot of sense. It does what it sounds like—"installs" the files from their unpacked .zip archives to a dedicated spot, and makes their utilities accessible from the Start Menu (or Launchy or another favourite app-launcher). As the FreewareGenius blog points out, this has the added bonus of helping you remember you have the little guy available in the first place, rather than letting it collect dust in some corner of your Program Files folder. ZipInstaller is a free download for Windows systems only.