The best thing is to check out Shopify’s marketing guide called 50 Ways to Make Your First Sale – it is full of tips and marketing ideas to Boost your store.
Apart from that i would recommend
Build Content Strategy based on your Customer Persona (Target Audience)
SEO and Social Media always gives long term return and its worth investing if its targeted very well
Some of the Marketing Apps you can use form Shopify App store for example Loyalty, Reward , Instagram follower app etc
Even you check with Kit, lot merchant uses very well you can check out their videos and functionalities. Kit can now create Dynamic Product Ads that retarget shoppers on Facebook who left your site without purchasing. You can find a step-by-step guide here on how to use Kit’s retargeting features and I would definitely recommend setting this up for increasing your sales.
Today one of our team member (Ms Runali Patil, Shopify Developer Expert) shared a link on Shopify Theme Development Workflow. We found it very useful for anyone who want to develop theme on Shopify Platform.
Shopify Theme Development is little bit different then developing themes on WordPress. Shopify you do not run a local server instance or database because you don’t have to worry as, Shopify made a choice to reduce complexity by hosting and guaranteeing the quality of the data model. So, you don’t have to worry about ever updating your server. And Instead of that, you work locally and use a syncing utility to push your changes to the server instantly, where you can view them. If you are comfortable with the command-line, I highly recommend the shopify theme gem.
A typical workflow for a single feature branch:
Pull from master and checkout a new branch
Log into Shopify store admin
Duplicate the published theme
Rename the duplicated theme to the name of your branch
Click “Customize Theme” of your new branch theme
Note the theme ID in the URL (example: /admin/themes/9542224/settings)
Edit the theme_id in config.yml to point to your branched theme
theme watch and do your work
Preview your work by navigating to that theme in Shopify admin and clicking preview
Rebase onto master, push to master repo
Delete your branch (local and server)
Delete your branched theme in Shopify Admin
You can also check this Video on Shopify Theme Development Workflow
This workflow makes use of the command line. It is not anything too intensive, but being comfortable with common commands will help. Firstly, You need to install Theme kit, it is cross platform command line tool for Shopify Theme Development.
Other then that you also check out couple of more resource on related to Shopify Theme Development, Which give you an insights from the Basic