Dreading flats!

[sgtiger]

2) Someone once mentioned about something you squirt into the tube the "seal" it up to get you going without having to change tube?

The only one that comes to mind right now is Slime but I think there are other brands on the market. You have to remove the valve to get it in though. Some LBS's will do it for you or you can purchase prefilled tubes for about 3x the price of regular ones. You'll probably still need to stop to inflate your tire and inspect it to remove the offending object that punctured your tire in the first place.

I found an excellent how-to once on a commuting site, but I can't seem to find it now. I'll post it if I stumble upon it later.

ETA: I just read on one of the local LBS's website that it's not recommended for high pressure road bike tires.