KITTA is well known all around for being a handy washi tape in a small compact size that you can slip into your journal and is great for on-the-go. What's awesome about KITTA is that they come in pre-cut 5cm strips so you can just tear a piece off and stick it right onto your page, wall etc. 

This new range of KITTA clear is made of PET film and gives the paper a nice texture.