1 The pads must be secured to the sides of the hole or the mice will eventually pull them out. 2  Large holes will need to be repaired. 3  After a couple of days, look for evidence of continuing mouse activity. 4  If there is any, check the holes that you sealed, and look for more holes.
A better measure for a pen's ink economy- and this is what they use in product testing- is writing distance. A dry ink ballpoint pen typically writes in the kilometer range- it can draw a continuous line of about 1-3km. For example, Papermate has a economy disposable pen line called Kilometrico. Bic pens fall into this category. A roller ball pen has a typical writing distance about 5-10 times less than that. Typically, 400-700m. A fountain pen has even poorer ink economy. My best guess is in the 100m-200m range, based on how often I refill my fountain pen vs replacing a roller ball.
Once the pen is breached with its first needle the clock is ticking. The pen now has an official life of 30 days and a realistic life of 45 days regardless of how much you use. Keeping it in the fridge will not extend its life, but will only make your shots hurt like hell. Most bodies donât like cold fluids injected into them.