I don't have anything that's universal. Most of it is saved Platypus modifications. Other than that:
  • Homestar All-In-One
  • (New) Gmail Bottom Posting
  • Experts Exchange Filter
  • YousableTubeFix
  • Boxoh Links
  • SOFU links in new tab
  • SOFUread
(Warning, those last three are ones I wrote.)

I may have others installed at home.

Those are all on userscripts.org.
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Bitt Faulk