With an entire family, we try to do as much for ourselves as possible.
Genrally, if takes longer to drive/cycle and wait for a service, I do it myself. This works well for haircuts, shampooing carpets etc. Over a year, simple haircuts for the family really adds up to wasted time and money.
Fixing things ourselves helps us to understand how things are made. Then when shopping for something, it's easier to tell if something is well made--and the land fill doesn't fill up as quickly
Example: instead of buying 3-5 cheap blinkies/year. I built my own llights + strobes. It took a month to figure it out but they've paid for themselves.