A good question.
A local answer.

Check the one-way rental fee, drop-off location and opening hours for your exact car provider before buying flights.

Check how long each tour stays at the cellar doors and whether the included wineries suit your tastes.

Use the Glenelg outing as a separate half or full day so the beach walk and a meal do not feel squeezed between tours.

Choose one nearby village, garden or walking area that fits the time left after the lodge's booked activities.

Ask the airline about advance approval or a paid excess option before travel; do not rely on being able to negotiate at check-in.

Compare hotels by the actual trip to the venue and the late return, not just their distance from the city centre.

For four weeks, inspect the apartment's cooling, laundry, lift and kitchen details as carefully as its location.

Start outdoor activities early, then return to the hotel for a break before a concert or dinner.

Choose the destination and pickup area first, then compare tours by time at the attraction rather than the number of stops.

A glass with lunch is different from a structured tasting; reserve the latter if it is a must-do experience.

Check Adelaide Metro's current fare and validation rules for adults and children; do not assume a single tap covers several travellers.

Plot each overnight stop and actual drive time first; the Eyre Peninsula adds substantial distance once the return to Adelaide is included.