Changing RStudio's Default Settings

After (re-)installing RStudio Desktop/IDE Links to an external site., I always immediately change the following default settings:

• "General" -> "Basic" -> disable "Restore .RData into workspace at startup" (because I want to make sure that I can always reproduce my results with the raw data and my script files -- without potentially non-reproducible objects created in a previous R session) 
• "General" -> "Basic" -> "Save workspace to .RData on exit": choose "Never" (for the same reason as the previously mentioned change; this also has the advantage that when re-starting the R session (Ctrl+Shift+F10), one starts with a 'clean' workspace)
• "Code" -> "Editing" -> disable "Vertically align arguments in auto-indent" (because I vertically aligning arguments can make the usable length of lines very short, particularly when one aims at a maximum width of 80 characters per line, which I think largely improves the readability of the code by humans)

Material from R Courses

• Exercises (including R code for answering the questions) for the PhD course "Advanced Applied Econometrics: Causal Inference with Observational Data" (taught together with Marc Bellemare, University of Minnessota): (a) causality (partial replication of Dehejia and Wahba, 1999), (b) instrumental variables (partial replication of Bellemare, 2013), (c) difference-in-differences (partial replication of Card and Krueger, 1994), and (d) IV Variables and Identification — a Simulation Study. 
• Pre-conference Workshop "Using R for Agricultural Economics Research "at the 29th International Conference of Agricultural Economists (ICAE). in Milano, Italy, August 8, 2015: download files from here.
• Basic R Tutorial at the 14th European Workshop on Efficiency and Productivity Analysis (EWEPA) in Helsinki, Finland, June 15, 2015: download files from here.
• Workshop "Using R for Agricultural Economics Research" at the 14th Congress of the European Association of Agricultural Economicsts (EAAE). in Ljubljana, Slovenia, August 26, 2014: download files from here.