Buy a caulk gun and use these larger tubes over the small ones - this will go much further for the $!  We use this type of caulk for doing windows, caulking between wood, etc.  This is NOT for bathrooms!  Cut a small slanting tip off the tube and this will work great.  Use Youtube if you are inexperienced with caulking - very easy and it makes a huge different for window seals and bathrooms!  We sealed some walls of a room that someone had built in our barn.  Worked great for keeping the dust out!