Blu Tack is one of those things that everyone has used at some point in their life. While I haven't used it particularly often recently, I used to have quite a few posters on my walls as a child as so Blu Tack was a constant presence in my room. Along with White Tack, nothing else is used so much to temporarily attached posters and pictures to walls.

== Blu Tack ==

Using Blu Tack is simple. A pack consists of a long, shallow block of Blu Tack from which you rip off small pieces. You then gently stretch each small piece and warm it slightly with your hands until it becomes flexible and can stretch a few inches or so, and then roll it into a small ball. You can then attach this ball to the corner of whatever you want to attach to a wall or similar surface, such as a photograph or poster. Once there are enough pieces of Blu Tack on the item (you need more or less depending on how much it weighs) you can then attach the object to the wall by pressing on the bits of Blu Tack through the item onto the wall. Providing that you've used enough Blu Tack, this should stay attached to the wall for a reasonable amount of time.

== What I Thought ==

Blu Tack is a handy thing to use for attaching posters and the like to walls. It works pretty well and I even managed to use it to attach a poster on the ceiling above my loft bed when I was younger (Spike from Buffy and then Eminem, if you were wondering). It also worked well on attaching posters and sheets of paper to my walls. This year two sheets of paper with interpreting symbols on them remained stuck to a wall in my bedroom for an entire year before I took them down without me having to reattach them.

That said, Blu Tack is not perfect. I have had quite a few things fall down after only a few days or weeks even when a lot of Blu Tack had been used and my flatmate's photos would fall off her walls on a fairly regular basis. The posters on my ceiling also only stayed up with the help of my body heat, as they would always fall down if I spent a night away from home. I tried putting up a couple of posters in room in my last flat but they fell down after only a few days so I gave up. Also, there is the problem of them often leaving marks on the walls. While this is alright if you own the place you live in and don't mind little marks as you can constantly have a poster or whatever covering them, a lot of letting agents and landlords will take money out of your deposit if you leave these marks on the walls. White Tack is therefore better for this although doesn't solve the problem altogether.

== Conclusion ==

I'm unsure as to whether to give Blu Tack three or four stars as, although it's the best thing I've used for attaching things to walls temporarily, it's not without it's problems. It's handy for light things but you still may have to reattach posters and photos every now and then.