Based on your level and achievements in the game, you will have free clothing options. Do not spend coins on clothes unless you have lots of spare money.
Tap as much as and as fast as possible using multiple fingers.
The Library allows you to spend money to train your workers or play Pong. Pong is extremely difficult and usually will end up costing money. Training also is not a good choice, because you have to pay for your workers to get experience. Save your money and do not spend it at the Library.
Purchasing the Motel requires 65,000 coins. Start saving for it after getting three workers in your business and maximizing your Coin Upgrade multipliers menu. The Motel is the first house that you acquire and it opens more options.
Begin investing in pets after you have upgrades and everything else needed to make a steady profit. Pets will have people donate coins of a higher value. They are a good combination with Rush Hour. Pets are only used when you stay in the game and actually collect the coins dropped by people.
Some challenges will require you things that you cannot complete until the time runs out. When this happens, use tickets to complete the challenge. Because the reward is two tickets, if you only have to spend one to complete the challenge you will still make a profit.