Always use 30 hashtags on every social media post. Why? Because you'll have more exposure through each hashtag. Some people might say "oh hashtags make my social media posts look bad". Well, you can choose traffic or looking good on social media. Your choice. Also, if you're a small womens clothing boutique (for example), you should not be using large hashtags such as #fashion, #cute, #like, #trendy, #style, etc.
Stay tuned for more social media marketing tips to come. Or you could visit my site and check out our marketing blog for more juicy information!