Okay, the cat's out the bag (on MN if not in RL) - this is for my own v low-key wedding in 2 weeks.
Thank you so much to all who gave opinions on my original thread about choosing between 3 dresses.
Dress 3 was never in the running (deepdarkwood summed it up by saying I'd risk being mistaken for an overplumped cushion)
I made it even between Dress 1 which I still insist is navy and Dress 2 which is purple. 8 votes each.
I still really love both dresses but, with apologies to MaryQueenof Chocs and my fashion-advice friend Tethersend, I've decided to go with Dress 1..... ta da!! I took on board what Traceybath said about needing to feel va va voom 
So now, shoes - going by advice so far I'm wondering about nude or navy patent courts? I linked to some Clarks options but they didn't get much response so I'm assuming they weren't suitable (at least 2 had a strap across as I struggle to keep shoes on my feet). Am a size 39/40, wide flat feet, not used to heels, will be dealing with 2 toddlers.
Also, is there anything I can get to wear over the top? I would suggest a cardi but Tethers might faint. Anything though? We've got a registry office thing (only our parents and dc there), then afternoon tea in a nice hotel where DP & I will then stay the night, having dinner. So I thought maybe an extra layer for the afternoon bit so I can go to dinner with just the dress for maximum effect? It might be freezing given current weather conditions. I have no idea what to wear though.
Jewellery - bracelets? cuffs? I don't like gold but am thinking silver? I have a plain silver flat wide chain (no idea what the proper name is) that I'm wondering about as a necklace? Any better ideas?
Thank you very much. Since it's secret, I have noone else to talk to about it (except MIL who is a long way away - my mum not that interested)