sounds nice! because of the cleaning .. and possible total house use even in a short stay, i'd say weekends MINIMUM and ideally rent by the week. i would take a look on vrbo and home away to see what rents are charged.
one caution with cottages ... there are some who rent them out with cleaning optional. in other words, renter pays a cleaning fee in addition to rent or is to clean the place before they go. of cottage owners i know who rent them out, i rarely (i'd like to say never) saw a cottage cleaned by the folks leaving who left it clean enough for the next occupants. this was not a money saver or labor saver for the owners. so i wouldn't even offer that option and would build the cleaning fee into the rent. some take a cleaning deposit 'just in case' but trying to chase down the last renter for cleaning money is no fun, nor is arguing with them that the place was not left guest ready.
another thing about cleaning. since you are right there, will you be going in from time to time? if i were you, i'd say basic housekeeping is included ... especially with week and month long rental. that way, when housekeeping is done a few times a week, you (or housekeeper as your eyes) are able to check that the property is being respected and not damaged or misused without saying this to the tenant. this is more for an owner who does not live right there.
grilling rules, trash rules, fire rules, smoking rules, candle rules .... depending on your situation.
the last cottage i rented, i paid a damage deposit that was refunded after the owner checked the property.