For my latest web project using Squarespace's Forte template, there were a number of customizations I wanted to make to the site. Here they are.
A simple bit of CSS allows you to turn gallery blocks in pages using the Forte template stretch out to the full-width of the window to showcase images and maximize awesomeness.
Add a "Copyright © ..." notice to your SQS or other website that stays up-to-date as the years change.
It's a good idea to use the Quote Block in Squarespace for actual quotes. Some don't like the theme styles, though. Thankfully, they can be customized thusly: