Pin, I agree with JP. No need everyone to attend the solemnisation. Those who wanna come and see to ur solemnisation will make it a point to come at 7:30. No point waiting for those who geylek slowly and show face at 8:30.
Anyway there are stuff to consider in ur checklist like (ok these are just afew i can only think off hand.)
1) events/item IC, ie who is incharge or JM, ap box money, car driving, time keeper, co-ordinator, liasing to vendors, ap giving, etc....
2) rsvp of guest list names. Last min there will be lotsa changes. Your parents may arrange the tables, but they won't be able to help you to keep track of whether ur guests received ur invites and stuff.
3)AD sequence of events
4)Meeting up with the hotel to settle favours, non standard food items like veg and muslim guests. Going through the dinner events and when to do what, if have something different from norm. Oh yeah.. check for audio and video quality and projection locations.
5)Songs selections
6)Re-confirm and go through the schedules with ur mua, pg and vg.
7)if paying via Credit card, must ask for limited extension.
8)break into the wedding shoes, like putting extra padding etc.