i clean regularly for a pub and got chatting with him,
he told me 2 things of many that he does.
1) he sells chips in pint pots for £1.25, when there a few in he will give a couple of the lads a free pint of chips, before you know it there all ordering them.
some may find the next one disturbing and therefore should look away now

2) he said the only guys in that spoil the pub are the man utd fans so when utd go a goal down he knocks 10 pence off a pint while there down. he doesn't get many man u fans in now and says the pub is bustling with all fans because of it.
he took it over 2 years ago and has me in every 6 months to keep the place looking clean as its mainly a food pub with 3D tv's everywhere and he has 100 pairs of 3D glasses behind the bar.
good on him.