Hmmmmm:

FOOD:
1 x 2.3 kg bag Medi Cal Reduced Protein lasts about 3 months - that is free feed dry
In addition to that Max eats 1 small tin of Fancy Feast per evening

LITTER:
Ha! 1 x 14 lb bag Feline Fresh clumping will last about 8 months.....

(Don't forget, I only have one kitty who only pees about 3 times a day and poops once) I have two litter boxes

TREATS:
one bag will last about a month

TOYS:
He doesn't do toys any more...... they were all shipped to Winnie and Angel

Yes, my furbaby lives pretty cheaply