Get your lime from the builders merchant for a tenth of the price.

Get fertilser from the farmers merchant for about a thirdof the price.
(20-10-10 is excellent general fertiser).
Get pesticides/herbicides from the same place.

Make your own compost or get it from the recycle centre.
It just needs riddling forseed/cutting purposes.

Get seed from pound stretcher for half price or save your own

Get garden tools from the car boot sale.