One of the biggest adjustments us guys go thru is using condoms. If you haven't used them in 20-30 years, look out...it can be a deflating experience struggling to put one on. I must have tried a dozen or so until I found the ones I liked.
Expecting the Provider to have your brand is unrealistic...but some of the ladies do have an assortment. Bring your own; you'll be glad you did.