First, unless you are placing an unusually heavy load in the vehicle, inflate all five tires to 36 PSI, not 26 as the door jamb suggests. The recommended 26 on the door jamb will wear your tires out really really fast, and while it is ideal for off-road driving, it is not appropriate for Highway driving.
If you do not know when your valves were last adjusted, or if it has been more than three oil changes since they were adjusted, adjust them now. The exhaust valves will run tight over time, and you will have engine damage if it is not addressed.
My CR-V does not lose a noticeable amount of oil between oil changes, but that doesn't mean yours won't. I would take with you a container of fluid in every type your CR-V uses until you have driven it long enough to expect how much fluid you will be losing over time.
I would also do a thorough underbody, suspension, belt, hose, electrical, exhaust, etc inspection when you change your oil and all of your fluids. Properly inspecting the car every time it is serviced is the easiest way to find issues you need to address before they become problems that will leave you stranded.
On the subject of fluids, every drain plug, and the rear differential fill plug, requires a crush washer. That crush washer must be replaced every time the drain or fill plug is removed. They are very cheap and easy to get at any Honda dealer.
The rear brakes on these don't self-adjust terribly well. If you want to check yours, start the engine and remain parked with the parking brake off. Step on the brake pedal several times to get an idea of how squishy it is. Then pull the parking brake lever up as far as you can, and step on the brake pedal a few more times. If the brake pedal gets significantly more firm while the parking brake is engaged, the rear brakes need to be adjusted.
As has been mentioned, make sure the timing belt is replaced in a timely manner. Under normal conditions, the timing belt on a first gen only has to be replaced 100,000 miles, but if the car has been driven in extreme temperatures, hot or cold, the belt needs to be replaced after only 60,000 miles. If you don't know when the timing belt was changed, change it now. Also, always replace the coolant pump whenever you replace the timing belt. The coolant pump is operated by the timing belt, and if the coolant pump goes bad, it can destroy the timing belt immediately. Timing belts usually come with a replacement timing belt tensioner pulley. That should also be replaced whenever the timing belt is replaced. All three accessory belts should also be replaced at the same time, since you have to take them off anyway.
If you want to be super prepared, make sure that you have some sort of roadside assistance, like aaa, that can tow you either to your destination or back home if you break down and can't fix your car on the road. CRVs don't break down frequently, but since the vehicle is new to you, you aren't going to have a clear picture of what repairs may have been neglected.