To Blackpool Town Centre, Stage Coach Line 61, from the Peel Hill stop. The service runs roughly every 30 minutes from Monday to Saturday and every hour on a Sunday. The Peel Hill stop is roughly a 15 minute walk away. Click here for a link to the Stagecoach website for the Line 61 with Live info and the full timetable.
The closest is Tesco Extra on Clifton Road, click here for a link to the Tesco website store locator.
Click here for a great article from the Manchester Evening News on the attractions in Blackpool.