Thin-layer chromatography (TLC) is a widely used method of qualitative analysis in organic synthesis, as it uniquely combines low cost, rapidity, simplicity, versatility, small quantities of sample and low detection limits. The simplest and most economical method for the application of samples onto TLC plates is by hand, using glass capillaries. In certain cases, for example, when monitoring a reaction conducted in a large flask, especially when direct spotting is applicable (i.e., the sample taken from the reaction mixture is applied directly on the TLC plate), a device that can be used for both sample removal and application is useful and makes the analysis simpler and faster. A usable tool should be long enough to reach the reaction mixture and slim enough to fit easily through a 14/23-flask neck. This article describes a simple and inexpensive capillary holder for applying samples onto TLC plates. (Contains 2 tables and 2 figures.)