The commodity industry you have entered is extremely competitive.

Social media marketing is a methodical trial and error approach to marketing. We create ads, curate website content, run A/B tests for conversion pages, give out freebies, hyper-target social media profiles through mining of hashtags and trends, running more A/B test from the A version of a prior A/B test thus segmenting even further and hopefully improving conversion of leads or sales much faster.
You cannot expect to have a social campaign solely on one platform – every platform is natively connected by our desires from each.

A person might see a friend like your page or product on facebook but disregard it, then later jump onto twitter and see you are helping a customer with sizing questions or suggesting a trendy hat for a sunny or rainy day, then later checks Instagram for cool pics their friends and celebs are posting… your goal there is to top their predisposed assumption of you by having their friends/users upload a pic of your website or product proudly modeling it/bragging about it, thanking, etc. Your own posts shouldn’t be pushy. If you sell clothes post pictures of situations you see your clients being involved in. such as having coffee at Starbucks or eating a bagel by the park or jogging, or reading a book in bed… once in a while throw in outfits, always understating the discounts or promos… people are there for imagery not to be sold.
With that said, here some things you should try:
1. Have dedicated segmented time either by day or hour for sharing thoughts, ideas, lessons or tips with other developers online through local blogs (I say local so that you can meet & greet the bloggers and make true connections so that you can better promote each other. Have their blog link to your twitter feed, or Instagram or even Facebook.
2. Target social media accounts – each social media has its purpose, unwritten rules and expectations; leverage these 3 and target users who you see wearing your items, have dedicate landing/conversion pages for each profile and social media. Facebook user mentality who clicks on ads is different than the mentality of when you would click on an ad on Instagram – so each link should customized to that mentality and then further each be split into 2 variations to measure what works best and improve from there.
4. Conversion pages are not websites, they have one single simple purpose such as getting email leads, getting users to download an ebook, sign up for a trial, watch a video, make a social share, etc. for this the content has to be directly targeted to the audience you are sending there, using their preferred vocabulary and imagery.
5. Use tools such as Sumome.com to find out what your visitors are doing while visiting your site.
6. Use paywithatweet.com to have people literally pay for a low cost feature service you can offer for ‘free’ to a client when bundled with something else or as standalone such as an ebook or newsletter signup.. the cool thing about pay with a tweet is that users can pay with several social actions not just twitter.