Tenth & Grace

Guest List
Some states require witnesses to be present at the courthouse ceremony, and some don't. Part of the reason you may have chosen to have this low-key option may be to avoid the overwhelming process of who to invite, and this certainly limits your capacity. Space in the courthouse is limited, so it's okay to keep your guests to 6-8 max. It's completely up to you! You and your partner may choose to just have one best friend each, or just immediate family. Whoever you choose, ensure that those people are there to fully support you and only bring the best attitude.

Invest in the Memories
You'll be saving money all around, but a photographer is something you should absolutely invest in! Do your research and find someone who reflects a style you and your partner love and wish to exude. Have them accompany you to the hall and for a session afterward to capture stunning shots around your home city! Most photographers bill hourly, and as a city hall ceremony typically takes about 15-20 minutes, you can save a hefty sum and still take your time traipsing around, finding prime locations for photos!

You probably won't need to go far: some courthouses, like the San Francisco City Hall, are architectural gold, and many a beautiful photo has been taken just outside its doors!
If nothing else, invest time and money in a proper photographer that will allow you to relive the memories for years to come.