My others are not so nice.
One tip for everyone in case you didn't know is you can save a fair amount of cash by throttling your water/sewage and Electricity.
If you're outputting 50Mw of power from your power stations, Wind Turbines etc, but your city only needs 25, then knock their budgets down. It will save you a good wad of cash. Same for the other Utilities in the Economy tab.
Also, keep on top of your RCI demands (Residential, Commercial, Industrial) but only expand a little a time. Don't Zone 100 blocks at a time, just do a small amount and see how the demand reacts.
Remember SPACE BAR is your friend