How to amass lots of friends:
1) Get a house that has a swimming pool. The downsides to this are that you'll find it impossible to keep any beer in the fridge, and you'll never be able to find a dry towel.
2) Get a warehouse. It's amazing how many friends you'll have that just need to store a "little stuff" for "awhile".
3) Get a shop. It's amazing how many friends you'll have that "could use a little help" on a "small repair job"... "in your spare time"... but you'll have the opportunity to refine your mechanical chops to a whole new level as many of these projects will be a challenge. Also, you'll come away with a whole new perspective on your odds of winning the state lottery... as million-to-one, or even billion-to-one odds will seem routine when it comes to thinking you’ve seen everything.
4) Get a box truck and hand truck (or better yet: an appliance hand truck). This combination of items works well as an impetus to prune down any pile of spare cardboard boxes that would otherwise accumulate... unless, of-course, you also have a warehouse... then the cardboard boxes will just leave (with you and your box truck) for awhile... but will return (with you and your box truck)... fully utilized.
5) Get a listed business phone number, and contribute to the first charity fundraise telemarketer who calls (which should happen within a few minutes of the phone being activated). Guaranteed, you'll have all kinds of new friends who will call morning, noon, and night... 7 days a week. As a bonus to having all these new phone friends, you'll seldom have a concern that your phone might not be functioning.