We got whatever we needed. Knowing that all cottages are well equipped including fridges we included fresh meat, juices, cream, milk, butter, eggs etc.
Most of the cottage resorts have only a small store for the essentials and normally no restaurant. Barbecuing a steak in front of your cottage is always more fun than going out for dinner. Especially then when you have nice company as we had - the always hungry chipmunks.
For that reason we added a bag of peanuts in shells to the groceries.
We love to go shopping in local privately operated stores in smaller communities. The prices are normally similar to those in big chain store and the service is very often even better and more friendly. Most of the time they are also closer.