with regards to making home life easier, and cleaning and products, the most useful tool for me would be hired staff to do the cleaning for me, so that I could improve the quality of my day, rather than spend time on rather repetitive chores.
As far as a cleaning product goes, I would love to have something similar to a vacuum that sucked up stains, etc., from all surfaces, rather than push them around like a sponge. It would have various heads or attachments to match the various surfaces that need cleaning: a wet one, a dry one, one for soft surfaces (upholstered furniture), one for hard surfaces, etc.