Maybe you could work on your own projects as if it is a client, i.e. take 2 hours out of your 40 hour billable work week and deliver as if it is a client. To m

Maybe you could work on your own projects as if it is a client, i.e. take 2 hours out of your 40 hour billable work week and deliver as if it is a client. To make it even more real you can take some savings, draft a contract with someone you trust and tell them to only pay the money back as you deliver the 'client work' to yourself. If you fail to deliver, the money goes to charity. Also, once you have some revenue from your own app, divide by your hourly rate to know how many hours you will spend on it per week.