Don't Waste 4 Profitable Opportunities from Mayor Daniel and his City:
After the useful introduction to Mayor Daniel during the initial tutorial and early levels many players completely forget about Mayor Daniel, I know I did this up until I reached the levels where the Trade Depot and Global Trade HQ are opened up when I realized what an opportunity I had been wasting.1) Hitting Daniel's Trade Depot every 24 Hours
2) 48 Hour Trade Depot Buyback
Mayor Daniel is also a good friend when it comes to buying out your old stock that you just can't sell - every 48 hours or so he will check out which items have been in your City's Trade Depot for more than 2 days and then he will buy them at the original price you set. This means you should never use your premium currency to delete older items from your Trade Depot because all you have to do it wait a day or two and you will have a guaranteed customer who pays 100% in Simoleans.Later on in this website's "Tips & Tricks" Section I will go into this in more detail as part of an ongoing profit strategy but for now just remember your Trade Depot always has a cash buyer just waiting to help you out.
3) Making New City Connections with Friends/Neighbours
One of the key points of introducing Mayor Daniel to you early on in the game is to encourage you to connect via Facebook with your friends or other existing gaming acquaintances in order for you to build up a group of neighbouring cities who can form a trading block for both buying and selling your items without having to compete with tens of thousands of other players in the Global Trade HQ. Buying and selling with your neighbours is less of a hassle and you can come to arrangements about pricing and helping each other out with hard to find upgrade items or expansion/storage materials.
4) Learning Layout Opportunities from Mayor Daniel's City
For a general overview on City Layout check out this guide for more suggestions: http://www.simcitybuildit.info/2015/02/optimizing-your-simcity-buildit-layout.html