There are things you should consider before you dig out those garbage bags from beneath the kitchen sink. For example, what kind of things can you really move safely in a bag, and which bags are the right ones to use?  Do get outdoor rather than indoor bags, as they are far tougher and thicker. After all, you will be packing, loading, and unpacking bags of important belongings. If your bag splits open, your belongings will go everywhere. The best choices for garbage bag transportation include:

Clothes and shoes that have flat or soft heelsBlankets, sheets, pillows, pillowcases, and towelsPlacemats, dish towels, and tableclothsUnbreakable lightweight toys and sports equipment

Be sure that the bags are large and thick enough for your needs. Another easy option is to buy white bags and label them with a permanent marker.

Wrap more fragile items in shirts, towels, sheets, or blankets to protect them from breakageUse newspaper to wrap individual items (be sure to tape the newspaper so it does not come unwrapped in transit)Collect boxes from liquor stores or grocery stores