Wedding expenditure regrets (How to save?)

Hey... I have my wedding coming up in 3 months. I have all my functions in Kolkata but the reception is in Mumbai. I want my whole wedding to not be too extravagant. I want to save as much as possible and put that money into starting our lives after the big day.

What are some things that you or your loves ones spent on during a wedding that could have been totally ignored? Or, what are somethings that I can avoid spending money on.

I would love to read your answers.