diff --git a/src/commands/CancelCommand.ts b/src/commands/CancelCommand.ts
index 0199bb5..2c167da 100644
--- a/src/commands/CancelCommand.ts
+++ b/src/commands/CancelCommand.ts
@@ -49,6 +49,9 @@ export class CancelCommand extends CLICommand {
       args.reason as string
     )
     console.log(`Issue #${issue.id} is now cancelled`)
+    if (branch !== "develop") {
+      console.log(`Switch back to develop: git checkout develop`)
+    }
     return 0
   }
 }
diff --git a/src/commands/CreateCommand.ts b/src/commands/CreateCommand.ts
index 8972235..bf84e55 100644
--- a/src/commands/CreateCommand.ts
+++ b/src/commands/CreateCommand.ts
@@ -78,6 +78,7 @@ export class CreateCommand extends CLICommand {
     writeTodoFile(todo)
     commitFile("TODO", `todo(${nextId}): open`)
     console.log(`Created issue #${nextId}: ${args.title}`)
+    console.log(`Start working: mime-todo start ${nextId}`)
     return 0
   }
 }
diff --git a/src/commands/DoneCommand.ts b/src/commands/DoneCommand.ts
index 13d3ec7..921d496 100644
--- a/src/commands/DoneCommand.ts
+++ b/src/commands/DoneCommand.ts
@@ -1,7 +1,7 @@
 import type { Argv, ArgumentsCamelCase } from "yargs"
 import { CLICommand } from "../cli/CLICommand.js"
 import { parseTodoFile, writeTodoFile } from "../file.js"
-import { getCurrentBranch, commitFileWithBody } from "../git.js"
+import { getCurrentBranch, commitFileWithBody, getDirtySubmodules } from "../git.js"
 import { validateStatusTransition } from "../issue.js"
 
 export class DoneCommand extends CLICommand {
@@ -17,6 +17,11 @@ export class DoneCommand extends CLICommand {
         demandOption: true,
         description: "High-level summary of what was delivered",
       })
+      .option("confirm", {
+        type: "boolean",
+        default: false,
+        description: "Confirm that submodule branches have been merged and pointer updated",
+      })
   }
 
   async execute(args: ArgumentsCamelCase): Promise<number> {
@@ -41,6 +46,14 @@ export class DoneCommand extends CLICommand {
       return 1
     }
 
+    // Check for dirty submodules
+    const dirtySubmodules = getDirtySubmodules()
+    if (dirtySubmodules.length > 0 && !(args.confirm as boolean)) {
+      console.error(`Submodule(s) have uncommitted changes or modified pointers: ${dirtySubmodules.join(", ")}`)
+      console.error(`Ensure feature branches are merged and pointers updated, then run with --confirm`)
+      return 1
+    }
+
     issue.status = "done"
     writeTodoFile(todo)
     commitFileWithBody(
@@ -49,6 +62,8 @@ export class DoneCommand extends CLICommand {
       args.summary as string
     )
     console.log(`Issue #${issue.id} is now done`)
+    console.log(`Merge to develop: git checkout develop && git merge ${expectedBranch} --no-ff`)
+    console.log(`Then push to Bugzilla: mime-todo push`)
     return 0
   }
 }
diff --git a/src/commands/HoldCommand.ts b/src/commands/HoldCommand.ts
index 65f9223..8e7e812 100644
--- a/src/commands/HoldCommand.ts
+++ b/src/commands/HoldCommand.ts
@@ -48,6 +48,7 @@ export class HoldCommand extends CLICommand {
       args.reason as string
     )
     console.log(`Issue #${issue.id} is now on hold`)
+    console.log(`Switch back to develop: git checkout develop`)
     return 0
   }
 }
diff --git a/src/commands/InitCommand.ts b/src/commands/InitCommand.ts
index df5a17c..842af31 100644
--- a/src/commands/InitCommand.ts
+++ b/src/commands/InitCommand.ts
@@ -152,6 +152,7 @@ export class InitCommand extends CLICommand {
     }
 
     console.log(`\nInit complete: ${created} items created`)
+    console.log(`Push issues to Bugzilla: mime-todo push`)
     return 0
   }
 }
diff --git a/src/commands/StartCommand.ts b/src/commands/StartCommand.ts
index a5bed0a..c750f61 100644
--- a/src/commands/StartCommand.ts
+++ b/src/commands/StartCommand.ts
@@ -55,6 +55,7 @@ export class StartCommand extends CLICommand {
     )
     console.log(`Issue #${issue.id} is now in-progress`)
     console.log(`Create the issue branch: git checkout -b ${issueBranch}`)
+    console.log(`If working in a submodule, also checkout there: cd <submodule> && git checkout -b ${issueBranch}`)
     return 0
   }
 }
diff --git a/src/git.ts b/src/git.ts
index 83ed707..73a1404 100644
--- a/src/git.ts
+++ b/src/git.ts
@@ -87,6 +87,19 @@ function parseGitLog(range: string, cwd: string): GitCommit[] {
   return commits
 }
 
+// Check for dirty or modified submodules
+export function getDirtySubmodules(cwd = process.cwd()): string[] {
+  try {
+    const output = execSync("git submodule status", { cwd, encoding: "utf-8" }).trim()
+    if (!output) return []
+    return output.split("\n")
+      .filter(line => line.startsWith("+") || line.startsWith("-"))
+      .map(line => line.trim().split(/\s+/)[1])
+  } catch {
+    return []
+  }
+}
+
 // Check if a commit subject is a todo transition
 export function parseTodoTransition(subject: string): { issueId: number; status: string } | null {
   const match = subject.match(/^todo\((\d+)\):\s*([a-z-]+)/)