Scrounge, that's my next improvement for my records once I take the time to set it up. All hail =VLOOKUP!
I also want to create some drop down lists for schools to standardize the data.
You can always overwrite the lookup function in the mileage cell for those one off cases when you travel from somewhere else.
One of these days I want to build an app that syncs a database to Dropbox but I haven't found that much free time yet and the Excel sheet seems to work well enough.