Alton Towers, Thorpe Park, Chessington World of Adventures & Drayton Manor all offer come back deals to entice you to stay another day.  If accommodation is planned carefully, this can be worth it so check out these come back deals:

Thorpe Park; currently offering a return trip for £1!  More details can be found at come back deals for Thorpe Park.

Come back deal at Thorpe Park

Alton Towers; look out for the tomorrow tickets, starting from £9 adults, £5 children.  More details can be found at come back deals for Alton Towers.

Chessington World of Adventures; offers £5 return tickets for the next day or £14 for any day of the season.

Drayton Manor theme park; pick up a return ticket for £12 for the following day or £19 for an open ended return ticket.

Check out your local top attraction to see what they can offer you!

Liz