Cheap 3/8" socket set - PeteM swears by £15 halfords ones, I've got a £20 sealey one (from ECP). Set of open / ring spanners (ie, open at one end, ring at the other). 2 Tonne trolley jack, pair of axles stands and some screwdrivers (posidrive / philips mostly), and some allen keys. As you've got a VW, you'll probably want to replace your 10 and 13mm spanners and sockets with better quality ones at some point. Surface drive sockets are ace. You'll also want a big fecking ring spanner for hanging on the end of the bar you got with the socket set (NOT the ratchet). And you'll want a telescopic 1/2" drive wheel bolt undoer as available at all boot sales for £3.