For this site, a request was made for a location where clients and project managers could upload and download files with no restrictions on file size and the ability to limit access to the files to specific clients. This sounded really complex, but luckily somebody had already gone through the trouble of creating a project that did all of that and more. I found Project Send and installed it on the server for a trial period of a few weeks to make sure it did what we needed it to do.
I installed the Navtacular navigation that I worked on with Michael Martin to replace the broken navigation that was there before. Then I made the site responsive, including the 5 different tables. In the end, the heaviest page on the site comes in at 136 kB minified and gzipped, and the entire site is mobile-optimized.