Invest money into things that will save you time. In business the one thing you will always run out of is time. Find efficient ways of doing things. Often paying someone to do something that would take you infinitely longer and create stress for you is a no brainer. A cleaner can clean your house/flat in an hour or so…..what can you make dealing with clients in those two hours? Creating more experience, client satisfaction and money. You can kid yourself you never need to clean but at some point you need too! They’re experts so employ them.
Also a clean uncluttered working environment creates more productivity in most people.