Good. You’re diversifying your range.
If you want more clients at the gym: If you haven’t got business cards yet then make some. They don’t have to be fancy just good contact information. Every time you talk with a potential client (anyone who asks questions you can answer as a professional) make sure they receive one. Promote your profile here, I have numerous ones out there but this really is the most legit looking one, and you can really flesh it out. Hold pow-wows (with novice gym goers or just friends) at the gym you train at. When people see you training they pay attention to the exercises; when they see you teaching they start analyzing your knowledge as an expert. You have got to get publicity and that means getting your self out there in front of the masses. Local TV station are good places to make appearances (do a small segment on debunking fitness myths or something else entry level and cap it off with one advanced scientific principle: i.e. enhancing metabolism to enact athletic developement) and situate yourself as a local celebrity.
If you want more in home clients: Do demonstrations. Do them at crowded events near your training radius for maximum exposure. Again, don’t just show people things, teach them. Have pamphlets on hand that promote your services as an in home trainer and make certain you have developed a complete business model (don’t get caught unable to answer questions about your own business!)
I am never really short of clientele because of the exposure I create for myself but it takes some dedication at first to be recognized. Oh, and create a brand that is totally based on your style and never let anyone know you NEED clientele, just that your looking to expand your clientele. Fake it till you make it; if you appear to be a success then you must be… right? Give ’em quality and word of mouth will accumulate into testimonials for advertising.