No seating plan!

Tanisha the style of not providing a seat for every guest is called "rude", and you're right, that's not my style.

120 people is a lot of guest! We only had 62 and we had a seating chart. I mean ultimately it's your wedding and you can do what you want, but as a guest, to me it looks disorganized.

My cousin did this and it was horrible. There was 1 table of 12 and the rest were tables of 8/10 and a group of 10 friends sat there. My family (all from different states) had 12 people which meant 2 people had to sit at a table with people they didn't know. The group that sat at the 12 seater refused to move, so we split up. It was really awkward. My cousin later said he assumed that everyone would realize the biggest table was for family (the venue was really split up with a raised area in the center, so they couldn't see us). I'm assigning tables, but not seats.

I've been a guest at similarly-sized weddings with no seating chart and it really made it less fun. For your guests' sake, at least assign tables. You can leave an empty seat or two at each table so they have the option of moving around a bit if they like. Without some sort of direction it feels like the cafeteria on the first day of school.

I went to a wedding this weekend that didn't have a seating chart, and it was okay. They had a smaller wedding, though, and they had a few tables reserved for family. We ended up having to squish a couple extra people into our table so that everyone could sit together. I know I always prefer having assigned tables at weddings because it's less awkward. If you insist on doing this, you need to have more tables and chairs than guests, and you need to reserve some tables for family.