Although the sun is welcomed when staying in a cottage during summer, excessive sunlight and the resulting heat can make living conditions unpleasant. This was also the case in the cottage in Käsmu, on the windows of which we installed 3M Prestige series solar control films. During the installation, we experienced a situation where a fly got stuck under one of the films. In such situations, it is customary to order a new film, as removing any dirt from the film may damage it. However, our professional installer found a solution, removed the fly and was able to install the same film, saving the customer money.