How many plates, glasses, silverware, etc.. do you have?

We have too many! In your situation I think 4 or 6 is a good number.

We enjoy cooking and there are three in our family with occasional guests. There is no way we could live with four of everything (or even eight or twelve), primarily because I'm NOT going to be hand washing dishes because we've run out of forks or glasses, but the dishwasher isn't full enough to run. As it is, we bought extra spoons because that seems to be the utensil we use more than any other.

We have 2 sets of dishes, I think they serve 8 each. We like to have people over and there are 5 of us, so we need that many.

Dishes are my weakness, too. I keep piling them up while always checking to make sure my cupboards look like they are up to task of holding them all.

I keep some stashed in my pantry, too.

If you like changing up the look of your table but you don't entertain a lot consider the possibility of buying things that are open stock. Just get one place setting in a few different styles so YOUR dinner table looks cute and makes you happy on a regular basis.

It's only DH and I but we have complete dinnerware service for 23. It's Fiestaware with no two colors the same. It's more of a collection of colors than a need of plates, bowls and cups.

My flatware is service for 25. (remember the box top points you collected and turned in, my Grandmother bought all four grandkids a set this way and gave them to us when we got married). Forks, knives and spoons, serving spoons, meat fork, tongs, butter knife, sugar spoon, etc. All matching.

For tea/water glasses I have 16 I, think. Wine glasses and champagne flutes, 12 each, and numerous other specialty bar glasses.

Oh, I do have more fiesta plates in the cellar, that my sister and niece got rid of. Probably 12 or 15.

All the family dinners are usually at my house.

ETA:  I forgot I also have a complete set of china in the cellar AND my MIL's china.  Holy heck, I could open a restaurant!

I have silverware with service for 12. I have 8 place settings of Fiestaware with a ton of serving pieces. I had dishes with service for 12 but downsized when I decided to get on the Fiesta bandwagon last spring. I live alone but love to cook and entertain frequently. However, my dining table only seats six so I rarely have more than that and when I do, I go with disposables. I have a cupboard full of glasses. 12 wine glasses, 12 margarita glasses, 8 water glasses, 8 old fashion glasses and an assortment of Tupperware glasses and a few Tervis tumblers. 

Other than coffee mugs, I have service for 12. It's casual though... No china or fancy silver here.

WAY TOO MANY! Two sets of 8: one Bistro-ware and one a different set from Pottery Barn.

I have 16 place settings of some dishes that I got at Target. They have pastel polka dots on them and we use them for Easter.

I have 12 place settings of Noritake that I am thinking of getting rid of because we never, ever use it.

And I have about 24 place settings of Spode Christmas (20 of which I inherited).

As for flatware, we use silverplate daily and have 18 place settings. Then I have a set of 12 place settings of some Pottery Barn caterer's ware.

The biggest party we have every year is Easter, which is around 20 people. Otherwise, we rarely have more than six total.

ETA: All of those sets have mugs or cups/saucers that go with them, but for daily mugs we have another cabinet full.

Honestly I couldn't tell you how many. I'm a total freak when it comes to kitchen and tableware and have been known to buy a dinner service specific to one occasion then box it up. I have a lot of boxes in the garage and they need to be culled.

If I were in your position though, I'd still go with 6 of everything. Sometimes even if you only have 3 people at the table you might want to use the same plates for appetiser or entree or whatever. And it also allows for breakages. Most sets come in 4s and 6s so if you buy 6 it's only 2 more plates / bowls, and they won't take that much more room than 4 would. If you have 4 and break one or two you're up for a new set. With 6 it will give you wriggle room.

I have 3 sets of 8 dishes. I only keep the plates, none of the dish sets seem to have the shape/size mug I like. I have about 20-35 mugs and a set of 16 glasses. Bowls though, I have all kinds of cereal bowls. I haven't found a size/shape that I like in the Fiestaware, I have tried every size and shape. They're either too big or small.

Silverware we have a set of 13, 8, 8 and another one that no one touches.
We have good china for 8
Crystal for 12
Tea set for lots
Not many mugs due to granite countertops.

18+ colors of Fiestaware for just the two of us.

Silverware - I think I have service for 12 or maybe it's 16? I bought two sets, one would not have been enough. Plus I kept my old silverware and moved it to the bonus room/tv/bar as backup just in case kind of thing. There was nothing wrong with it, just got tired of it.

Dishes - mine are 20+ years old from back in the day when you could by the pieces for 29 cents at the grocery store. I think I bought service for 15 of the general pieces(cups, bowls, dessert, etc). Figuring we would break a few. But the plates came in 2 designs and I bought both. So I have/had 30 stoneware plates - 15 in each design.

I also have my grandmother's china. I think that is service for 12. But since it's gold rimmed and kind of ugly I never use it. The gold rim is more the problem as it can't go in the dishwasher. First we didn't use it cause I didn't want the little kids breaking it, now I just can't be bothered to hand wash.

The kicker, I hate to entertain. It is just to much work and I don't enjoy it. I feel like I spend all my time cooking and cleaning and just don't enjoy it.