I have a lot of business experience. I am the Diet or of Accounting for an R&D firm, I am on the board for a not-for-profit organization and I have even owned a couple small businesses. I am good at process improvement and management. I can make my employers successful and grow their businesses, but can't think of something for myself. Need to get past this brain lock I am in. IDEAS???

Why not set up your own cleaning business? I know many window cleaning business owners who earn a decent wage!

Check out places like https://windowcleaningforums.co.uk for how to get started. There are many business owners on that forum. Then look at getting a cleaning site sorted by a service that focuses in that area like https://cleanershost.com. Don't go with some free website they are terrible and never rank in search engines that well.