Similar to the handcuff key, it is also a good idea to hide a razor blade/Manora blade in the same spot as the handcuff key so that you are able to free yourself should the attackers tie you up with a makeshift lashing. A good trick for keeping the blade covered, is to wrap it up in duct tape to prevent you from injuring yourself whilst keeping the blade on you at all times.
In the event that you lose the key, or it gets confiscated use a strong object to break the bow portion of the cuff by prying it open. If you are placed in the back or front seat of a vehicle whilst handcuffed, pry open the double-strand portion of the cuff by inserting the safety buckle in between the two strands and prying open the rivet.
Time: Switch up your routines and the times that you leave your home or the time when you come back home, and your daily routines in general.
Environment: Change the areas and places that you go to, try using a different route to work every day, fill your car at a different fueling station every time. Do your best to avoid creating patterns in your day to day business, this in itself will deter would-be attackers as they will have no base to work from.
Distance: Increase and decrease the distances between your daily stops by visiting different locations, be sporadic.
Demeanor: Your demeanor should be one of confidence. Project confidence and make it look like you know what you are doing, be competent. Keep your head on a swivel, appear as if you're always ready and as if you always have a plan. Never show that you are lost or scared.