A few more thoughts. It's been a few days since I looked through the site so apologies if any of this is covered:
What will wear out on a bike and when it's likely to do so (e.g. depending on how far and often you're commuting etc...). Also, consequences of neglecting, even if it's just a loss in efficiency. I've ridden for years but it was only relatively recently that I realised a bike could run as new for as long as if properly maintained (but obviously that's a choice and not necessary).
Someone from my old work bought a second hand bike that the rims were bulging they were so worn. He had no idea it was a ticking time bomb.
People often don't realise a chain is a consumable (and how cheap it is to replace even getting a bike shop to do it)
Puncture section: another option is to take it to the nearest bike shop and see if they have time to fix it?
Braking: your front brake is the safest and most efficient way to brake- you can't go over your handlebars providing you're bracing and you don't have arms like limp spaghetti. It is however very easy to skid the back wheel using the back brake. (One of my scariest experiences was trying to stop the bike with just my back break when the front failed going downhill in traffic at considerable speed)
The Bike Station fix your own bike sessions mentioned anywhere?