• Summer camp
• CSA
• Amazon Prime
• AAA
• Holiday/Birthday presents for others
• Kids birthday parties
• Kids activities
• Auto registration
• Synagogue membership
• Hebrew school
• Credit card annual fees (I have a couple that are worth it)

That's most of my list of recurring spending that happens less frequently than monthly. Obviously the list will be somewhat personal.

Comparing my list to yours, these are some I have that you don't

• apparel
• entertainment
• Gifts and Family Events
• Christmas (gifts, events, food)
• Subscriptions and Software
• Big Brother (silly paperwork renewals: licenses, passport, dues, permits)
• Charity and Donations
• Professional Services: accountant, lawyer (correction: I see you do have this one, but I'm leaving it here anyway)

A few that I don't have but which occurred to me:

• Do you have a pet?  Veterinary and health expenses
• Back-to-School expenses (I hear a lot about it from my sisters)

My computer replacement category is under savings along with retirement investing, next car purchase, furnishings, and travel.

I have a couple that I like knowing are in my budget!

• Medical Expenses
• Therapy Appointments
• Clothing
• Car Registration
• Future Move (you might not need this one)
• Christmas Traveling Expenses
• Christmas 2018

• Car Registration/title transfer (I just finished a divorce so when I renew I need to get the ex off the title. Also I am registered in OK but in CA so might have to mess with Smog and a whole bunch of stuff.)
• License renewal
• Cell phone replacement
• Software subscription
  • AVG Ultimate (So anything that you have for security suite for you computer)
  • Ancestry.com
  • Hallmark E-cards
• Sam's Club/Costco/BJ's Wholesale
• Gamestop Memberhip
• X-Box Membership
• Any theater discount program
• Science center
• Zoo membership
• YMCA
• Gym
• KOA membership
• HOA dues
• Yard care
• Maid
• Pest control

Several of these I do not have but I know people that have them and did not see them on the list so I throw them out there. 

I have a bunch of things that have already been listed (or include the expenses in some other category). Here's some others:

• Legal & financial (attorney's fees, tax prep, etc.)
• Charitable giving
• 4 separate categories for the dog: Food, medical, pet sitting, and miscellaneous (for toys, bedding, etc.)
• Hobbies
• Miscellaneous (stamps or other random shipping not related to gifts or Christmas, my driver's license renewal, banking fees--which thanks to YNAB, I no longer encounter, but did in my first couple of months)
• Household goods (new furniture, kitchenwares, towels)
• Home maintenance (new smoke alarm, replacement part for the dishwasher, tools, big long term projects)
• Cleaning and home care (cleaning supplies, light bulbs, TP)
• Yard (plants, yard work fees, garden tools)
• Work related expenses (professional association memberships and events, unreimbursed expenses, classes or training)

Somehow you want to cover all this stuff from all these lists, but I'll repeat the advice I was given when I started: Don't go overboard with categories. Combine some things that make sense in a way that works for you. At first I had separate categories for each of my utilities. Within a few months I combined it all into a single utilities category. If I still need to know how much I've spent on electric, I can run a report for just that payee in that category.

For me, having separate categories for things where I'm trying to better control spending, helps me keep an eye on it. For example, the quick take-out dinners and work lunches were killing my budget, so they have a category separate from groceries or entertainment (like going out to dinner with friends). 

I've started adding a bit more to the Stuff I Forgot to Budget For category. 

If an "unexpected" expected expense comes up, I have two choices:

-Pay it with my Forgotten category, then make a new budget line

-If it's a membership I know longer need or want or a fee paid because of a dumb mistake, I pay it and make sure I handle it so it doesn't come out again. 

In no particular order our "True Expenses" are:

Home Insurance
Property Taxes
Auto Insurance (We save a lot of money by paying in full twice/year)
Auto Tags/Taxes/Registration
Homeowners Association Dues
Birthdays (Mine, Wife's and Children are separate categories)
Anniversary (We go out for a nice dinner and purchase a more pricey item that we've both wanted.)
Black Friday/Cyber Monday (We buy all the gifts we need for each other and family/friends for the coming year)
Amazon Prime Subscription
YNAB Subscription

This actually has me thinking of where I can combine categories (e.g. my computer and phone categories should really just fall under a general 'electronics' label or the major appliances category)

Read all, just have 2 adds. Work expenses for the occasional collection at work for flowers, retirement gift, etc. Tax preparer fees for that special time of year, but budget for it every month. 

Khaki Trombone said:
This is totally a newb question - but where are you saving the money for these expenses?

I try to put as much money as I can in my high-interest savings account. That means that instead of calculating how much I need in saving, I calculate how much I absolutely need to keep in my chequing and transfer the rest to savings.  I use a formula to help me know how much to leave in chequing:  my average monthly spending on the monthly stuff (rent, utilities, food, etc.), plus any scheduled annual expenses (includes credit card payments), plus an extra $1K for flexibility (my preference),  and I transfer all the rest to a savings account that pays the best interest. In YNAB you don't assign category balances to specific accounts.  Here's an article you may find helpful.

https://www.youneedabudget.com/the-relationship-between-your-budget-your-accounts-its-complicated/