I am fortunate enough to have my FI friend who is taking our photos, for free. She enjoys taking photos as a hobby, and we recently had an engagement session with her and loved her style. Although she wont take money for the photos, we are finding creative ways to say thank you (we bought her a family pass to the local zoo for the engagement photos).
Other ways we are cutting down is the OOT bags. We are working on ways to include a cute survival kit style bag. I know everyone thinks that sunscreen is a staple for people who travel, and most people bring it themselves (and I agree), but I found packets of sunscreen for cheap, so I am going to include those.
I also found an app on my phone to track my budget, that seems to help!