DD is 18 but has had ME for 4 years and hasn't been in school. As part of her gradual transition back into education she's started an evening class once a week at the local college. Last term I took her myself, but it's more age-appropriate for her to go by herself, though she's not well enough to do it alone or by public transport. A taxi is also not an option.
So this term, one of DD's friends is going to be giving DD a lift and picking her up again 2 hours later. It is just to help DD out, friend is not going anyway. It's 4 miles each way, but about 15/20 mins.
How much should I give her for this? She has her own car and pays for her own petrol. I also want to compensate her for the time going backwards and forwards for DD.