I am running low on supplies. Is there any way to build them back up so I keep my production buildings and research going.
* GBs (Boost % and/or set amount)
* Tavern Boosts
* Re-evaluate how many supply buildings you have - upgrade to current age if you haven't already (I have 10 current age min to make sure I have enough for events)
* Event buildings will often give either a supply boost or set amount of coins.
Use the wiki to determine if any of your events are worth using a reno/upgrade kit to increase the supply output
* Active Friends List! Aid your friends every day if you can. This will double output of standard buildings and give additional stuff to event buildings. If you can't aid all your friends then try to do the first 80. Trim you list whenever you get near to full so you can rotate out those not aiding with more who do aid.