City placement

[eric_]

Even so, I will often have some of these secondary cities overlap tiles with my primary ones, especially for commerce cities. Then I can ensure that cottages are being worked and growing if I have to reassign citizens in the primary city (to production tiles to build a wonder, for example, or to become specialists).

Wow...I like this tactic.

 

[Eggolas]

Wow...I like this tactic.

Yes, a "helper" city can be quite useful for a commerce city by actually working some cottage tiles to higher maturity and then transferring the work to the commerce city workers.