My family and I book online through 'Patient Online Services' if appointment needed, appointments released throughout day and night....my daughter booked one for 8:00am this morning last night at about 10.00pm....last appointment left and with one of the Senior Doctor partners at the practice too.
If we're not sure whether we need to bother a Doctor, either pop in and see our local chemist, or call practice and ask for a telephone consultation, whenever Doctor can call, and he/she decides if you need to go in, or prescribed something over the phone.