TheTS101 USB-C soldering iron is 21% off on Amazon. This amounts to a savings of$16 for a total price of$63.
For soldering jobs where I've not had access to wall power, I've previously turned to agas-powered soldering iron (currently 20% off). While it gets the job done, it's big and bulky and noisy, sometimes spits out flames, and needs regular topping up with gas.
Then I upgraded to a new USB-powered soldering iron, and this one is amazing and is everything I've ever wanted from a soldering iron.
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The TS101 USB-C-powered soldering iron is a portable, professional soldering iron that comes in a kit with everything you need -- the soldering iron, a USB-C power supply, a heat-resistant silicone cable, and even some solder.