I am doing a wedding cake for my BF, who lives 13 hours away. I don't think I want to attempt that drive with a completed cake (3 tiers), as I will be going with my 3 mo old and 2 year old. Did I mention I was in the wedding? So I was hoping I could find some tips on this. Should I make the cakes ahead of time, freeze, then let them thaw on the drive and assemble there? Or just accept that I will be doing everything there?

Hi,
13 hours? wow thats a long drive and with two young kiddies,
You could make the cakes ahead of time and leave them seperated, you could freeze them and they would thaw out by the time you get there, I'd take them out of the freezer a couple of hours before you set off though, to make sure they will definately be defrosted by the time you get there.
Don't build the cake, pack them in seperate cardboard boxes, and make sure you have everything before you leave, you could also think about a little repair kit, some spare icing/buttercream, fondant, couple of tools etc, just so if something goes wrong you can deal with it.

Hope this helps, good luck!