diff --git a/src/libstd/ascii.rs b/src/libstd/ascii.rs
index 83aec9d0aa639..4a43a00c5f5a9 100644
--- a/src/libstd/ascii.rs
+++ b/src/libstd/ascii.rs
@@ -18,9 +18,9 @@ use str::OwnedStr;
 use container::Container;
 use cast;
 use iter::Iterator;
-use vec::{ImmutableVector, MutableVector, Vector};
+use vec::{ImmutableVector,MutableVector,Vector};
 use to_bytes::IterBytes;
-use option::{Option, Some, None};
+use option::{Option,Some,None};
 
 /// Datatype to hold one ascii character. It wraps a `u8`, with the highest bit always zero.
 #[deriving(Clone, Eq, Ord, TotalOrd, TotalEq)]
diff --git a/src/libstd/cell.rs b/src/libstd/cell.rs
index e19b8ae712f9a..6fab74cbc2fc2 100644
--- a/src/libstd/cell.rs
+++ b/src/libstd/cell.rs
@@ -10,7 +10,10 @@
 
 //! Types dealing with dynamic mutability
 
-use prelude::*;
+use clone::{Clone,DeepClone};
+use cmp::Eq;
+use ops::Drop;
+use option::{None,Option,Some};
 use cast;
 use kinds::{marker, Pod};
 
diff --git a/src/libstd/local_data.rs b/src/libstd/local_data.rs
index 719cf2450c505..5c3ca07f128c4 100644
--- a/src/libstd/local_data.rs
+++ b/src/libstd/local_data.rs
@@ -41,7 +41,9 @@ local_data::get(key_vector, |opt| assert_eq!(*opt.unwrap(), ~[4]));
 // magic.
 
 use cast;
-use prelude::*;
+use option::{None,Option,Some};
+use vec::{ImmutableVector,MutableVector,OwnedVector};
+use iter::{Iterator};
 use rt::task::{Task, LocalStorage};
 use util::replace;
 
diff --git a/src/libstd/os.rs b/src/libstd/os.rs
index 541db01f1484f..fb67f82d612a6 100644
--- a/src/libstd/os.rs
+++ b/src/libstd/os.rs
@@ -28,20 +28,31 @@
 
 #[allow(missing_doc)];
 
-use clone::Clone;
-use container::Container;
 #[cfg(target_os = "macos")]
+#[cfg(windows)]
 use iter::range;
+
+use clone::Clone;
+use container::Container;
 use libc;
 use libc::{c_char, c_void, c_int};
-use option::{Some, None};
+use option::{Some, None, Option};
 use os;
-use prelude::*;
+use ops::Drop;
+use result::{Err, Ok, Result};
 use ptr;
 use str;
+use str::{Str, StrSlice};
 use fmt;
 use unstable::finally::Finally;
 use sync::atomics::{AtomicInt, INIT_ATOMIC_INT, SeqCst};
+use path::{Path, GenericPath};
+use iter::Iterator;
+use vec::{Vector, CloneableVector, ImmutableVector, MutableVector, OwnedVector};
+use ptr::RawPtr;
+
+#[cfg(unix)]
+use c_str::ToCStr;
 
 /// Delegates to the libc close() function, returning the same return value.
 pub fn close(fd: int) -> int {
@@ -396,6 +407,8 @@ pub fn self_exe_name() -> Option<Path> {
 
     #[cfg(windows)]
     fn load_self() -> Option<~[u8]> {
+        use str::OwnedStr;
+
         unsafe {
             use os::win32::fill_utf16_buf_and_decode;
             fill_utf16_buf_and_decode(|buf, sz| {
@@ -967,6 +980,7 @@ impl MemoryMap {
     /// `ErrZeroLength`.
     pub fn new(min_len: uint, options: &[MapOption]) -> Result<MemoryMap, MapError> {
         use libc::off_t;
+        use cmp::Equiv;
 
         if min_len == 0 {
             return Err(ErrZeroLength)
diff --git a/src/libstd/reference.rs b/src/libstd/reference.rs
index 91f03f02892e3..7584d07ed6423 100644
--- a/src/libstd/reference.rs
+++ b/src/libstd/reference.rs
@@ -11,7 +11,7 @@
 //! Utilities for references
 
 #[cfg(not(test))]
-use prelude::*;
+use cmp::{Eq,Ord,Ordering,TotalEq,TotalOrd};
 
 // Equality for region pointers
 #[cfg(not(test))]
diff --git a/src/libstd/run.rs b/src/libstd/run.rs
index 04e42b3eedfc5..1b880bc43ee82 100644
--- a/src/libstd/run.rs
+++ b/src/libstd/run.rs
@@ -20,7 +20,13 @@ use io::process;
 use io;
 use libc::{pid_t, c_int};
 use libc;
-use prelude::*;
+use option::{None,Option,Some};
+use task::spawn;
+use path::{Path,GenericPath};
+use result::Ok;
+use str::Str;
+use vec::Vector;
+use clone::Clone;
 
 /**
  * A value representing a child process.
diff --git a/src/libstd/trie.rs b/src/libstd/trie.rs
index ef0930fabf1cd..7530c5e338aad 100644
--- a/src/libstd/trie.rs
+++ b/src/libstd/trie.rs
@@ -10,12 +10,16 @@
 
 //! Ordered containers with integer keys, implemented as radix tries (`TrieSet` and `TrieMap` types)
 
-use prelude::*;
+use option::{None,Option,Some};
+use container::{Container,Map,Mutable,MutableMap};
+use iter::{Extendable,FromIterator,Iterator};
 use mem;
 use uint;
 use util::replace;
 use unstable::intrinsics::init;
 use vec;
+use ptr::RawPtr;
+use vec::{ImmutableVector,Items,MutableVector,MutItems,OwnedVector};
 
 // FIXME: #5244: need to manually update the TrieNode constructor
 static SHIFT: uint = 4;
diff --git a/src/libstd/unit.rs b/src/libstd/unit.rs
index 786a7f42bb394..d62fcca63a49e 100644
--- a/src/libstd/unit.rs
+++ b/src/libstd/unit.rs
@@ -11,7 +11,8 @@
 //! Functions for the unit type.
 
 #[cfg(not(test))]
-use prelude::*;
+use default::Default;
+use cmp::{Eq,Equal,Ord,Ordering,TotalEq,TotalOrd};
 
 #[cfg(not(test))]
 impl Eq for () {
diff --git a/src/libstd/vec_ng.rs b/src/libstd/vec_ng.rs
index e503497d95dff..c49a7302e729d 100644
--- a/src/libstd/vec_ng.rs
+++ b/src/libstd/vec_ng.rs
@@ -11,12 +11,16 @@
 // Migrate documentation over from `std::vec` when it is removed.
 #[doc(hidden)];
 
-use prelude::*;
+use ops::Drop;
+use option::{None, Option, Some};
+use clone::Clone;
+use iter::{DoubleEndedIterator, Iterator};
+use num::CheckedMul;
 use container::Container;
 use mem::size_of;
 use cast::{forget, transmute};
 use rt::global_heap::{malloc_raw, realloc_raw};
-use vec::Items;
+use vec::{ImmutableVector, Items, MutableVector};
 use unstable::raw::Slice;
 use ptr::{offset, read_ptr};
 use libc::{free, c_void};