By tweeting about trending subjects your tweets will be seen by a much wider audience than just by your own followers.
Here is a complete calendar of hashtag holidays for 2020 to make life a little easier for you. Think about how you can relate your own products to these events and pop in a reminder to create tweets around the subject nearer the time. Using the list of dates, note down how you can relate your products to key events, then schedule yourself a reminder to create tweets around the subject nearer the time. Use relevant hashtags to tap into a wider audience.
Here’s an example from Not On The Highstreet:
Successfully linking your business into key dates will keep your feed looking fresh and current, and will show your customers that you care about their needs - throughout the year.
For further tips, see How to stay relevant on your followers’ feeds and How to make your social media posts more shareable.