To maximise capacity:
Plastic bottles - remove the tops and carefully flatten the bottles.
Food and drinks cans - after washing out as appropriate, carefully crush them down.
Card and cardboard - cut or tear your card and card packaging into flat sheets.
By following the above, you will be amazed at how much more recycling you can get in your recycling bin.
Large pieces of cardboard can be taken to your local household waste recycling centre (HWRC) along with a range of other materials for recycling. Use this link to find out more about household waste recycling centres.