Buy from vending machines. My dc are allowed to choose from them after weekly swimming lessons but I still hardly ever get anything myself.
Buy an 'inappropriate' coat (short jacket without hood)
Not eat a proper evening meal sometimes! Took dc to the park this afternoon & got home about 5pm freezing cold!! We had hot chocolate & crumpets. Then some nuggets & sausages! All whilst sat on the sofa under a blanket with Harry Potter dvd on - bliss! My dm would have been much more organised & had some sort of proper meal ready to heat up quickly but snacky junk is fine for tonight 
This thread has made me think a bit about my own dc's lives. They often share bath water (age 6,8 & 9) & haven't mentioned any desire to have their own. It's always filled high with bubbles etc & gets topped up with hot if anyone spends a bit longer.
I use the same good quality shampoo & conditioner on dd's hair as on my own. Ds's have a nice kids one. Everyone's hair is well cared for. It's also in a style of their choice.
I'd love to have another bedroom so my ds's didn't have to share. We're likely to make this happen within 3 years (they're 6 & 8 at the moment) as I think personal space is important.
I try, whenever possible, to let me dc grow up having the same opportunities as single children. So allowing each to do 3 - 4 activities a week each if they want. This wasn't something that affected me but my friend (1 of 5 children) was always told 'No, because the other 4 will want to do it too.'
Always seemed so unfair as she didn't choose to have so many siblings. I will run myself ragged at times so that each child can do their desired activities. DH does shift work so not always available to spread the load. DM helps out a lot which I'm really grateful for.
Hand me down clothes are an option but never forced or instead of new. I'll often put a bundle of older ds's clothes on ebay & buy new for younger ds. They like different styles/colours/characters but jeans are usually passed down.
Interesting thread!