I know that many of yall are using a seating chart. I can barely remember if I have been to a wedding with one, but it seems to be a staple on here. I am having a rather small (100-125) family and friends reception, so I am not planning on using one. HOWEVER, for those of you using them or those of you who have been to a wedding with one...Do you like them? Do you think they serve their purpose? Do people switch seats? Kinda curious the pros and cons 