Here are some of the best things to do this weekend in San Diego from Friday, April 24 to Sunday, April 26.Friday ‘Art Alive’ celebration this weekend: The 100-year-old San Diego Museum of Art hosts its biggest annual fundraiser, an exhibition the pairs the creations of local floral designers with artworks from the museum’s permanent collection. This year’s theme is “A Centennial Soirée in Full Bloom.” There will also be large-scale floral and art installation and from 1 to 5 p.m. Saturday and noon to 5 p.m. Sunday there will be outdoor family activities. Art Alive hours: Noon to 4…