I recently acquired a Wacom Cintiq Interactive Pen Display and it was worth every penny of the $1999 that it cost me. Sure, that sounds like a lot. However, I work on a lot of maps. Without going into detail, I will just note that my commitment to over-commitment is a problem. I truly need to develop ways to more quickly and accurately compile my mapping in a digital form. Nothing (aside from LiDAR, maybe) has streamlined my mapping workflow more than being able to map directly on the surface of a high-resolution monitor. It is one-step beyond my previous advice to run out and get yourself a wacom digitizing tablet because it removes the final level of abstraction that separated your eyes from your work. Since the monitor is quite pricey, it may be a stretch for the average 'joe' (you know who you are). The next best step, the digitizing tablet, is an excellent way to go if that is your limit. Put plainly, you are a pitiable fool for not using either of them. Sorry to say that, but it is true.  Deal with it. I will admit that some of my colleagues that I have goaded into trying the tablet (haven't let anyone touch the monitor yet) have had some issues and, unbelievably, returned to clicking their freaking mice for miles across the virtual landscape. As I have said in the past: can your write your name with your mouse...of course you can't. Why then do you think you can map your favorite intricate contact with one better than you can with a pen? The digitizing tablet / monitor approach is far more efficient. You can program buttons on the pen and the tablet to substitute for frequent commands you use in the program of interest. In the case of the tablet, you can change its inclination to suit your ergonomic needs and can even freely rotate it through a large range of angles to get the perfect attack on the cryptic  contact you think is so important. The Cintiq rocks for geologic mapping. Convince your boss to buy one, or write it into your next geologic mapping proposal. Don't be a slave to a mouse...how embarrassing is that? Disclosure: I am left-handed but also moderately ambidextrous. I use my mouse with my right hand. I use the pen in my left. I use them both when madly mapping in ArcGIS.