1. When your children get a new game or toy, help them decide where its storage place will be. Involving them in the "where it goes" decision also helps remind them to put it there when they're not using it.

2. Limit the number of toys that can be out at one time.

3. Have designated toy-pickup and put-away times.

4. Put a small-size laundry basket in each child’s closet for dirty clothes.

5. Mount hooks at child level so they can hang hats, jackets, pajamas, etc.

6. Buy assorted sizes of rolling plastic storage boxes for kids to store things like dress-up clothes, stuffed animals, camping gear, and sports equipment under the bed.

7. Paint young children’s shelves different colors to encourage sorting things like puzzles, games, books. Label drawers and storage containers; paste on appropriate pictures for small children.

8. Keep a clean plastic dustpan in your child’s room to scoop up multi-piece toys.

9. Establish specific food and nonfood places in your house. Restrict eating to the kitchen and possibly the TV or family room. Forbid food in the bedrooms.

10. Create an after-school unloading routine. Designate a place to put coats, mittens, hats, and backpacks.

11. Encourage the regular weeding out of toys your kids have outgrown. Let your kids go with you to take them to a mission or shelter so they can see how their contributions help other people.

and, very important:

12. Establish "Room Rules" for kids, such as:

• Do not take food in their bedroom
• Keep all dirty clothes in basket or hamper
• Do not leave dangerous items on floor--balls, sharp plastic building pieces, roller skates
• Put away toys they're finished playing with before getting out something new
• Clean up room before going to bed

Set realistic goals:
People often set out with great aspirations of life altering results, but quit far too early because their goals are unattainable in a timely manner.  Write down how you want to look/feel/perform 8 weeks from now, and chart your progress in short time frames.  By doing so, you will see your results sooner and keep yourself motivated for a longer period of time.