My three favourites are:
1) Mulfab 4 seater 4 leaf rear springs
2) Vredestein T-Trac Tyres
3) Round door mirrors
My apologies to Peter - after a wet drive on the M5 in August and a wet drive down the M1 to Cranfield the list should read:
1) Peter's 7" wiper blade - near side
2) Peter's 7" wiper blade - middle
3) Peter's 7" wiper blade - off side
Then the other 3 items.