Saving is key! So glad I spent a couple of weeks running through my finances and creating a spreadsheet to monitor outgoings - what's that rule? 50/30/20 - where 50% of your earnings goes on essentials (rent, bills, food etc). 30% goes into savings/rainy day/investment and 20% is spare for luxury or can reinvest... something like that.

I got laughed at by a lot of people when I said that I do this and I log everything as soon as I buy it... Oh well!