diff --git a/README.md b/README.md
index a8bda55..0b9eeeb 100644
--- a/README.md
+++ b/README.md
@@ -128,8 +128,8 @@ A number of additional methods can be used to aggregate, reduce, or otherwise ma
 
 **Note on specifying dimensions:**
 Some methods expect a dimension to be specified e.g to choose between taking an average across rows or columns. The value of dimension can be
- - `timeframe` or the name of a property that has been grouped by
- - a positive integer (0 indexed) to refer dirctly to a given dimension e.g in a table plotting count against time, a value of `1` would pick out the time dimension. Dimensions are added in the same order the methods creating them are called so e.g. `->interval(d)->group(uuid)` would have `timeframe` as the 0th dimension, `uuid` as the 1st;
+	- `timeframe` or the name of a property that has been grouped by
+	- a positive integer (0 indexed) to refer dirctly to a given dimension e.g in a table plotting count against time, a value of `1` would pick out the time dimension. Dimensions are added in the same order the methods creating them are called so e.g. `->interval(d)->group(uuid)` would have `timeframe` as the 0th dimension, `uuid` as the 1st;
 
 #### Aggregators
 
@@ -211,21 +211,19 @@ There are a few built in methods for outputting data
 
 ```
 	{
-  		headings: ['array', 'of', 'column', 'headings',
-  		rows: [[], [], []] // rows of data, including row headings in the first position of each sub array
+			headings: ['array', 'of', 'column', 'headings',
+			rows: [[], [], []] // rows of data, including row headings in the first position of each sub array
 	}
 ```
 - `cellIterator (func, endDepth)` - Iterates a function over each cell in the table *TODO - known bug. need to change to being immutable*
 - `switchDimensions (a, b, method)` - switches two dimensions e.g. swaps rows for columns
-   - a - index/name of the first dimension to move (default 0)
-   - b - index/name of the second dimension to move (default: the deepest dimension of the table)
-   - method - when a or b are their default values, setting method to `shuffle` will move the dimension to be the first/last, and shuffle all other dimesnions along to make room, as opposed to swapping the a/bth dimension with the first/last
+	- a - index/name of the first dimension to move (default 0)
+	- b - index/name of the second dimension to move (default: the deepest dimension of the table)
+	- method - when a or b are their default values, setting method to `shuffle` will move the dimension to be the first/last, and shuffle all other dimesnions along to make room, as opposed to swapping the a/bth dimension with the first/last
 
 
 the Keen data with all aggregations, reductions etc. already applied.
 
-
-
 ### Utilities
 
 - KeenQuery.parseFilter(str) - converts a string compatible with the above syntax into a Keen filter object
diff --git a/lib/keen-query/index.js b/lib/keen-query/index.js
index 8321dab..6db94eb 100644
--- a/lib/keen-query/index.js
+++ b/lib/keen-query/index.js
@@ -78,6 +78,12 @@ class KeenQuery {
 			}
 		}
 
+		if (this.excludeNulls) {
+			str += '->tidy()';
+		} else if (this.excludeFalsy) {
+			str += '->tidy(true)';
+		}
+
 		str += this.stringifyPostProcessors();
 
 		if (this._printer) {
diff --git a/package.json b/package.json
index e768824..40158d7 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,10 @@
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "commit": "commit-wizard"
+    "commit": "commit-wizard",
+    "precommit": "node_modules/.bin/secret-squirrel",
+    "commitmsg": "node_modules/.bin/secret-squirrel-commitmsg",
+    "prepush": "make verify -j3"
   },
   "repository": {
     "type": "git",
@@ -39,11 +42,5 @@
     "npm-prepublish": "^1.2.1",
     "sinon": "^1.17.3"
   },
-  "config": {
-    "pre-git": {
-      "pre-commit": [
-        "node_modules/.bin/secret-squirrel"
-      ]
-    }
-  }
+  "config": {}
 }