How to turn £20 into hundreds - week 3

Money in stocking up fund carried over from week 2 = £11
payback from dish washer tablets for week 3= £5.88
payback from catfood for week 3= £9.24

total in stocking up fund for start of week 3 = \£26.12

On offer this week (1st September- 7th September)
six pack of heinz baked beans now £3
Normal price per tin 68p = £4.08 for 6 tins
(I would normally use 1 tin of these a week so not a huge saving individually but since I bought 3 packs total saving eventually = £1.08 * 3 = £3.24)
Weekly payback 68p

Surf washing tablets £3 for 18 washes = 17p per wash
Normal price = 21p per wash
Since I do 2 washes a day weekly payback = 14 *21p = £2.94
Number of packs bought =3

Cat food still on special offer so bought 2 boxes of 12 sachets = £5

Money left in stocking up fund at end of week 3 = £26.12 -£9 ( for beans) - £9 (washing tablets) - £5 (catfood) = £3.12

Used 1 tin of beans from stash so 68p paid back = £3.80
Used washing tablets so £2.94 paid back = £6.20 to be carried over to week 4


Value of stock in stash:
17 tins beans = £11.56
40 Washing tablets= £8.40
44 Cat food pouches = £14.52
114 Dish washer tablets = £47.88
Total value = £82.36