Checking in, found you all 
I'll catch up later but a reasonably frugal weekend.
I don't count DD's. LSD for me is where I might spend on a pint of milk, or maybe give the DC a couple of pounds for a charity event at school or post back a parcel.
Best frugal tip that I have is have a 'cheap' meal a week. Jacket spuds with cheesy beans, egg based meal, pasta with tomato sauces, toasties. YOu can bulk up with a pudding.
Tonight I am doing this, will make a raspberry and pear crumble from a few frozen raspberries I have left, a pear that REALLY needs using and a 35p crumble mix as it's a working day for me, so time is tight.
Jack Monroe has great recipe ideas.
Slow cookers are useful too.
Allocating specific amounts per month to 'notional' pots works for me. Say, £150 petrol, or whatever.