I've had success at buying and reselling the expansion items at ~$100-$200 profit each.
You can usually find quantity deals on the expansion items (storage expansion items < $487, land expansion items < $600) and they sell rather quickly.
Every once in a while the Trade Depot gets "stuck" full (see other threads) so I always keep a few open slots to advertise something low which usually emptys it.
@Mr_DuCey wrote:
I have found that all of the expansion items sell very well and I have been able to make atleast 5k in a day simply selling them one at a time. As far as anything else it would be more difficult as since it's easier to just craft yourself for free than buy from someone.
It’s not a good idea to sell your storage expansion items (locks, cameras, storage bars). Those should be coveted. You should always be moving towards expanding your storage. With regards to selling items, I have found that seeds, nails, planks, hats, vegetables, watermelons, tables sell well. Pretty much everything in the hardware and building supplies stores. Always sell at full price or a few bucks under full price to get noticed. When storage capacity is low I would suggest selling off the beach and mountain expansion items until you have enough storage to accumulate those items. Sell those items at full price or $1 under. They usually sell really quick. I hope that helps.
