Just wanted to get an idea of how other people approach this.
I'm a lone parent with an 8 year old DD and going out is difficult and expensive for me but I insist on trying to maintain some social life partly for my own sanity and also to keep in touch with friends. (I also have to go out fairly frequently for work).
I want not to go out so much that it upsets or destabilises my daughter as I want to spend as much quality time with her as I can -- I work long hours anyway and she is in a lot of childcare so I feel I need to put a premium on time with her. Plus its bloody expensive as I essentially have to pay someone whenever I leave my house without her. (DD's father isn't able to supervise her for legal reasons. I occasionally can ask friends to help out but have to pick my battles here in order not to wear people's patience out. No other family close enough to help.)
My general rule of thumb is to avoid two week nights out back to back, to try to limit if possible to one night out a week and have no more than one weekend night out of the house. Inevitably this rule sometimes has to be broken but I try to stick to that where I can.
This week for reasons too complicated to go into I ended up with a night out with friends on Tuesday and a work function which I had to attend on Wednesday. The Wednesday one was non-negotiable.
I try to talk to my DD at the beginning of each week so she knows roughly what to expect in terms of childcare patterns etc. On Monday I said I was going to be out Tuesday and Wednesday. She was fine with it then but on Tuesday morning she said she didn't want me to go out two nights in a row. I cancelled the Tuesday night with friends.
I was totally happy to do this but I thought about it afterwards and wondered if it was the right thing to do. I work like a nutter so in a best case scenario I only have a couple of hours with her a day during the week and I am conscious of wanting to be present for her when I can. On the other hand seeing friends is important and I don't want her to feel that she gets to veto my social life. She's always with a trusted babysitter and I'm pretty sure she would have been fine had I gone out anyway.
Leaving the financial element to one side for now, I need to figure out what the best balance is for her and me. I don't really know what the right and wrong answer is and sometimes don't trust my own instincts here: just curious as to what other people's rules are here.