It can be trickier around this time of year with horrible weather to be honest!
This weekend, for us, looks like -
Today: Lie in for all. DS1 now gaming, DS2 watching The Simpsons, DD on her iPad. DD and I are off to Home Bargains and Aldi shortly, to get the cleaning/toiletry supplies for the month ahead, and also a few bits we'll only buy from Aldi. DH has taken the dog out just now. We only go there once a month though. This evening, we'll watch Ant & Dec, possibly a film after. Might play a board or card game.
Tomorrow: DH is taking part in a charity golf day. DS1 has homework to do and needs to tidy his room. DS2 needs to pack and get ready for his residential next week. DD has a party in the afternoon. I'll be baking for the week ahead (quiche for lunches, bakewell tart for Sunday pudding and to put in lunches this week, probably also throw some flapjacks together). DH and I will also, between us, clean our bedroom and change all the beds. Get the ironing done, take the dog for a walk.
In the warmer months we try to get the DC out at least one of the weekend days on a longer walk with the dog. We drive to woods/parks/beach etc to make it worthwhile. Often we'll bribe them with treat them to ice cream. We go swimming a lot as we have a gym membership, though this is being cancelled sadly. We go to car boot sales, farm shops for a couple of nice treats, pop to the cinema if there's anything decent on.
Our family live further afield, so often we spend the weekend with them.
I do think there's a perception that lots of people are 'busy' at the weekend, and that this involves spending a lot of money. It's not accurate, in my experience. The vast majority of our peers seem to have clubs at least one weekend day, we will too from April, and spend the other day as a family and preparing for the week ahead. We live in a nice, middle-class, fairly affluent area and are reasonably typical. We only eat out for special occassions, or very rarely DH or I pop out with friends.