Some suggestions:

1. Hide a credit card and 50 euros on your bike
2. Hide a spare key on your bike, round your neck or give it to a mate ( on the same trip as you!)
3. Get a copy of the RIDE GUIDE to EUROPE ..... the top 20 rides in Europe. Try the Grossglocker High Alpine Road, or the Col du Petit St Bernard ..... routes are on www.ride.uk.com
4. Avoid the Mt Blanc tunnel and the Tunnel de Fréjus. Instead, go OVER the mountains; It's FREE and the views are much better than from the Inside of a tunnel!
5. If you do 500 miles a day, you are unlikely to have much time to enjoy the views and take in the sites. It would be cheaper to go 4 times round the M25 each day. Country road are more enjoyable, but expect to do 125 to 200 miles a day. So, alternate between the two.
6. Take out proper European breakdown cover, such as RAC.
7. Take a GPS and some maps.
8. If you arrive at your hotel around 5pm, you can shower, have a beer or two, and get a meal. If you arrive at 10 pm you are unlikely to get any of them, unless, of course, you are staying in a 4* or 5*, with room service.
9. Go with one or two biker mates .... you'll have lots of fun.

. Richard

Enjoy your trip