Somewhere I seen another user had a list of sites they used when developing that were nifty.
I spent about 20 minutes looking for it but couldn't remember any keywords.
I was going to add this to the comments but I guess will compile my own list here for now.
Easy File Transferring:
♦ transfer.sh [https://transfer.sh]
I am not so good with transfering files over ssh, especially when I need to pivot from one site to another (each with its own creds) in order to prevent my company asking me questions about the sites in 'other countries' I am connecting to.
Transfer.sh gives you an easy DragnDrop interface and to which you drop your file to and then it provides with a link you can get it from. Easily done with Wget.
This a great tool for adding assets like fonts and images to your site.
♦ Online Font Converter [https://onlinefontconverter.com/]
Easily converts fonts to/from: .dfont .eot .otf .pfb .pfm .suit .svg .ttf .pfa .bin .pt3 .ps .t42 .cff .afm .ttc, .pdf, .woff
Will keep this updated.