By simply removing the top of a soda bottle and placing it over the soil you're helping your small tender plants to retain precious humidity and warmth. You don't have to worry about messy bags or tenting them with plastic. This quick trick is a simple fix and best of all, you can always use the tops later for funnels if you so desire!
How do you keep your plants from feeling those chilly nights? Share what works for you in the comments.