diff --git a/src/lib.rs b/src/lib.rs
index 6b0bf10..c58d5b8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -229,7 +229,7 @@ along with range_bounds_map. If not, see <https://www.gnu.org/licenses/>.
 #![allow(clippy::needless_return)]
 
 pub(crate) mod bound_ord;
-pub(crate) mod helpers;
+pub(crate) mod utils;
 pub mod test_ranges;
 
 pub mod range_bounds_map;
diff --git a/src/range_bounds_map.rs b/src/range_bounds_map.rs
index f80177f..d4b8064 100644
--- a/src/range_bounds_map.rs
+++ b/src/range_bounds_map.rs
@@ -34,7 +34,7 @@ use serde::ser::SerializeMap;
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 
 use crate::bound_ord::BoundOrd;
-use crate::helpers::{
+use crate::utils::{
 	cmp_range_with_bound_ord, cut_range, flip_bound, is_valid_range, overlaps,
 };
 use crate::TryFromBounds;
@@ -411,14 +411,14 @@ where
 	{
 		invalid_range_panic(range);
 
-		let lower_comp = overlapping_start_comp(range.start());
-		let upper_comp = overlapping_end_comp(range.end());
+		let start_comp = overlapping_start_comp(range.start());
+		let end_comp = overlapping_end_comp(range.end());
 
-		let lower_bound = SearchBoundCustom::Included;
-		let upper_bound = SearchBoundCustom::Included;
+		let start_bound = SearchBoundCustom::Included;
+		let end_bound = SearchBoundCustom::Included;
 
 		self.inner
-			.range(lower_comp, lower_bound, upper_comp, upper_bound)
+			.range(start_comp, start_bound, end_comp, end_bound)
 	}
 
 	/// Returns a reference to the `Value` corresponding to the
@@ -1400,12 +1400,13 @@ where
 	///
 	/// # Examples
 	/// ```
+	/// use range_bounds_map::test_ranges::ie;
 	/// use range_bounds_map::{RangeBoundsMap, TryFromBoundsError};
 	///
 	/// let map = RangeBoundsMap::from_slice_strict([
-	/// 	(1..4, false),
-	/// 	(4..8, true),
-	/// 	(8..100, false),
+	/// 	(ie(1, 4), false),
+	/// 	(ie(4, 8), true),
+	/// 	(ie(8, 100), false),
 	/// ])
 	/// .unwrap();
 	/// ```
@@ -1649,7 +1650,7 @@ mod tests {
 
 	use super::*;
 	use crate::bound_ord::BoundOrd;
-	use crate::helpers::{config, Config, CutResult};
+	use crate::utils::{config, Config, CutResult};
 	use crate::test_ranges::{ee, ei, ie, ii, iu, u, ue, ui, uu, AnyRange};
 
 	//only every other number to allow mathematical_overlapping_definition
@@ -1844,8 +1845,8 @@ mod tests {
 				}
 				//make our expected_overlapping the correct order
 				if expected_overlapping.len() > 1 {
-					if BoundOrd::start(expected_overlapping[0].start_bound())
-						> BoundOrd::start(expected_overlapping[1].start_bound())
+					if BoundOrd::start(expected_overlapping[0].start())
+						> BoundOrd::start(expected_overlapping[1].start())
 					{
 						expected_overlapping.swap(0, 1);
 					}
diff --git a/src/helpers.rs b/src/utils.rs
similarity index 100%
rename from src/helpers.rs
rename to src/utils.rs
diff --git a/todo.md b/todo.md
deleted file mode 100644
index 373e02b..0000000
--- a/todo.md
+++ /dev/null
@@ -1,69 +0,0 @@
-# refactor
-
-- try to remove unnecessary uses of cloned()
-- use expand, expand_cloned and cloned_bounds everywhere
-- replace instances of |(key, \_)| with fn first()
-- rename insert_overwrite to insert_forceful
-- make all iterators cutsom types as is standardised in libraries for
-  some reason(?)
-- take a look around idiomatic rust for a bit
-- review method parameter names for all public functions
-- make try_from_bounds trait return TryFromBoundsError rather than
-  mapping the option all the time
-
-# optimisations
-
-- make a StartBoundWrapper that uses BoundOrd to implement ord and
-  use that instead of storing the startbound twice
-
-# Documentation
-
-- replace `RangeBounds` with `K` where applicatble in docs
-- replace rust types URL links with direct rust links
-- normalize the description of the project beteen:
-  - the first line of the crate levele docs/readme
-  - the description meta-data section on github
-  - the descriptio meta-data field in the Cargo.toml
-
-# features
-
-- make specifc RangeMap, RangeSet, RangeInclusiveMap... types for signature
-  simplification - alternatively add just the one generic SafeRangeBoundsMap + Set that
-  just add unwraps everywhere to simplify signatures on known-"Safe"
-  symmetric types such as Range
-- add rangemap's insert function to finally make range_bounds_map a superset of rangemap
-
-- add remove_at_point(), clear(), etc..
-
-- add a multi-dimentional version of RandBounds{Map,Set} by compositing Normal 1D RangeBoundsSets together in a big Vec or something.
-
-# open questions
-
-- should we implement FromIterator? If so which insert should we use?
-  (At the moment we do implement it using insert_strict())
-- should append\_\* functions not change the base if they fail half way?
-
-
-#### PUBLISH
-
-# after publish tasks
-
-- add links to [`RangeBoundsSet`] and map after docs.rs is live with
-  the docs, and generally check for dead links on docs and readme
-- tell people in issues of other rangemap libraries about my library
-  stonks advertising
-
-
-
-# new todos
-
-- the docs annoy me with sometimes including "Basic usage:" and
-  sometimes not, this may not be unique just the btree_cursors
-  function docs though.
-- no examples in the docs for Cursors and CursorsMut unlike Entry docs
-  for some other collections which have nice docs.
-- remove unused dependencies
-- update cut docs to say they just return (K, V) now
-- same with gaps docs except with I instead of &I now
-
-- grep for docs on doubleiterator and change to single now