I'm in the midst of planning an equipment roster for a new one-man band lawn maintenance operation. As part of my planning process, I'm trying to get a ball-park feel for what ratio of on-the-job time I will spend mowing, trimming, edging, and blowing. Feedback on the ratios encountered by others should give me a rough idea of how many hours I can expect to accumulate on my mower compared to my handheld power equipment based on my expected hours of on-the-job time per week. This in turn will help me calculate my ideal mower fuel tank size, handheld power equipment battery inventory requirements (I'm considering going cordless), and expected lifespan of equipment in years prior to obsolescence and the need for replacement. With the understanding that this ratio of time spent will vary widely for others based on location and size of properties serviced, it may be most helpful for responses to include typical account location (city / suburb / rural), type (commercial / residential), and size (sq. feet / acres). Interested to hear what types of ratios you guys are operating with!