Do you have any tool that you use all the time? Do you recommend it to everyone unprompted? Is it ridiculously specific to your situation, wants and needs? Let every one know how they can make their sewing better!!
I myself don't have any at the moment, but I have been eyeing a nice pair of left-handed fabrid scissors for quite some time and I might get it some day.
I just got some fancier tools for my birthday and my immediate reaction was to talk about them but honestly, the real answer to this is just my scissors.
I struggled for WAY too long with crappy scissors that hurt my hands to use and didn't even cut all that well in the first place. "Upgrading" to my current pair (in speech marks because they cost like £6 or something ridiculous and they're just random ones from Amazon) was a complete gamechanger and I really can't believe how much I was putting up with before.
Anyway. Preparing a new page in my notebook to list out everything the more experienced sewists mention in this thread and populate my Christmas list. Go go go! 😄
Sadly I'm too new to have anything really fancy. But I'd spent enough time climbing around on the floor complaining about having to cut everything with scissors that the husband went out and sourced a) a massive cutting mat b) an actual rotary cutter and replacement blades, and c) a thing of proper pattern weights with cute critters on them so I'll stop using our phones because one day I was definitely going to kneel on one of them and break the screen.
(This is unrelated but writing this out just reminded me I had a nightmare last night where I broke my phone screen, weird)
Anyway I posted pics of the haul on Mastodon and IG and nobody understood banana for scale! Everyone just thought it was a weird pattern weight or something!