Having heard stories of guys upsetting bottles in someones boat, etc; I tried to think of ways to prevent that when using them in my boat. Made a wood holder for the small bottles the dye comes in about 3"x3" piece of wood with a hole in the middle and store the dye in one of my lockers. When I go as a coangler in BFLs, COSTAs or state Fed events, I use the dye pens or transfer the chartreuse or blue dye to an eye dropped bottle that I store in a plastic bag in my tackle bag. When using the liquid, I usually apply it out over the water.