I edit a lot of stuff, formerly focused mostly on American elections and politics, and now spend I think most of my time here adding images to Commons.
I have a list of tools I use a lot lower down the page but here's my two scripts:
Very nice script to archive talk pages. Always remember to add archive links and navigation though ({{aan}} on archives, {{talk archives}} on the talk pages)
Hi! I've always thought Wikipedia was cool. I made my account on September 8, 2018. I edit a ton. I have a bot that edits HTTPS into applicable links. It is a bit more involved to run than I'd like so I don't do so very often; if you have categories it should edit and/or links that it should turn into HTTPS, please tell me on my talk page.
I mostly edit politics-related stuff, particularly state politics, which are super undercovered here. Lately I've been doing a fair amount of moving public domain files over to Commons -- going through Category:Public domain images ineligible for copyright (logo) and copying over obviously-PD American ones and finding mislabeled American ones in Category:All non-free logos. On Commons I've been working on finding free images on Flickr for state politicians and uploading political campaign logos.
I've made a few templates, but only this one was actually somewhat interesting: