If there is just one tool from the list of software I can recommend for almost anyone, it’s Greenshot. To say I almost use this every day is an understatement. It’s really one of the simplest software, but the amount of use I get out of this is amazing. Greenshot is a screenshot tool, it works very simply, press print screen, then you will be given an area you want to screenshot, with the choice if you want to save the file, copy it to the clipboard, upload it to any different image hosting sites.
Honestly, if you have work where you need to take screenshots, get greenshot, it’s amazing.